- Pro-rector UniMiB M.Orlandi
- INFN Board, S.Malvezzi
- Director of Physics Department UniMiB, G.Gorini
- Director of Physics Department UniMi, P.Milani
Moderator: C. Brofferio
Introduction to the Conference
Moderator: T. Kajita
Abstract: This talk highlights the Borexino developments and discoveries, both from technical and scientific points of view, which can be useful for the experiments currently in preparation. From the technical point of view this experiment codified the methods for the scintillator purification and for the construction and installation of the detector which must be able to maintain the...
Title: Where are we and where are we going?
Moderator: T. Kajita
T2K is a long-baseline neutrino oscillation experiment exploiting a beam of muon neutrinos or antineutrinos produced at the Japan Particle Accelerator Research Centre (J-PARC). Neutrinos are observed before oscillations at a Near Detector complex, located inside J-PARC at 280 m from the target, and at the far detector, Super-Kamiokande, 295 km away, where samples of electron and muon...
NOvA is a two-detector accelerator neutrino oscillation experiment. Using Fermilab's newly Megawatt-capable NuMI neutrino beam, NOvA measures the disappearance of muon (anti)neutrinos and the appearance of electron (anti)neutrinos at the far detector, 810 km from the source. These oscillations are observed relative to the unoscillated beam composition measured at the functionally equivalent...
MicroBooNE’s beyond the standard model (BSM) physics program spans searches for feebly interacting dark sector particles, investigations of the MiniBooNE Low Energy Excess, and searches for light eV-scale sterile neutrinos. This program is carried out with data collected from Fermilab’s BNB and off-axis NuMI neutrino beams. With five years of data collected, MicroBooNE is sensitive to a broad...
The ICARUS collaboration employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratory, performing a sensitive search for LSND-like anomalous e appearance in the CERN Neutrino to Gran Sasso beam, which contributed to the constraints on the allowed neutrino oscillation parameters to a narrow region around 1 eV 2 . After a significant overhaul at...
The study of neutrino properties and oscillations has entered the precision era, and control of systematic uncertainties in the present and next generation of accelerator-based experiments is required to maximize the sensitivity of their measurements. One of the leading uncertainties in many measurements and searches for physics beyond the Standard Model arises from the neutrino flux...
A new generation of experiments have measured the IBD antineutrino spectrum generated by nuclear reactors in the last 12 years with unprecedented accuracy. With respect to the Huber-Mueller model, they have revealed a short-distance deficit, manifesting as an over-prediction at the top of the spectrum, as well as an underprediction at around 6 MeV - which has become colloquially known as...
The unveiling of the reactor antineutrino anomaly in 2011 revived interest in measurements at very short distances from reactors with primary motivation to test the hypothesis of an oscillation towards a sterile neutrino of mass around 1 eV as an explanation for the observed deficit of neutrinos compared with predictions. An experimental program has been developed at commercial as well as...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment and underground neutrino observatory using liquid argon time projection chamber technology. DUNE will definitively resolve the neutrino mass ordering, and measure the mixing matrix parameters including the CP violating phase, with sensitivity to CP violation over a broad range of...
The Hyper-Kamiokande project (Hyper-K) comprises a large water Cherenkov detector, an order of magnitude larger than Super-Kamiokande, equipped with photosensors, electronics, and daq with higher capabilities, and a neutrino beam created with a MegaWatt-class beamline at the J-PARC accelerator complex. The main physics goals of Hyper-K are the discovery of CP violation in the lepton sector,...
The violation of CP symmetry was discovered in the hadronic sector, proving that CP is not a conserved symmetry of nature. However, the amount of asymmetry observed is more than two orders of magnitude too small to explain the disappearance of antimatter. It is therefore essential to search for and measure CP violation in the leptonic sector in neutrino oscillation experiments, which has the...
It is known that the lepton mixing angles are completely different from the quark mixing angles.
The fundamental principle behind the flavor mixing structure remains unknown. I shall review the different approaches to predict the lepton mixing angles and the Dirac and Majorana CP violation phases from theory, commenting also on their experimental tests. Their implications in neutrino ...
Extensions of the Standard Model explaining neutrino masses and oscillations lead to a possible understanding of why the Universe contains more baryons than antibaryons. I will discuss how the baryogenesis and a mechanism of Majorana neutrino mass generation may be experimentally tested.
The LEGEND experimental program is dedicated to the search for the neutrinoless double-beta (0νββ) decay of 76Ge with isotopically-enriched high-purity germanium (HPGe) detectors and a discovery sensitivity beyond a half-life of 1028 years. The first phase of the project, LEGEND-200, is stably accumulating physics data at LNGS since more than one year with 140 kg of HPGe detectors, and plans...
KamLAND-Zen is a double beta decay experiment that exploits the existing KamLAND neutrino detector which realizes an ultra-low background environment. The xenon-loaded liquid scintillator in a spherical nylon balloon was deployed at the center of the KamLAND detector. The first search for neutrinoless double-beta decay of 136Xe with 381 kg of xenon (KamLAND-Zen 400) demonstrated excellent...
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment is one of the most sensitive probes to date of the fundamental nature of neutrinos.
CUORE is located deep underground in the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, allowing for a sensitive search for neutrinoless double beta decay (0νββ) and other rare processes.
CUORE searches for 0νββ in Te-130 and...
The IceCube Neutrino Observatory is a neutrino telescope that the uses the glacial ice at the South Pole to capture high energy neutrinos, probing extreme phenomena in our Universe. In this talk I will present recent highlights from the collaboration, including our latest results characterizing the properties of the diffuse astrophysical flux, a multi-energy neutrino search in connection with...
The KM3NeT neutrino telescope is currently under construction in the Mediterranean sea. The detector is built in a modular fashion, with individual detection units (DUs) being deployed and starting data taking immediately after. With two detector configurations, KM3NeT is both searching for astrophysical neutrino sources with the KM3NeT/ARCA detectors, and measuring neutrino properties via...
$^{214}$Pb represents one of the most common irreducible contaminant in rare-events physics experiments.
In the XENONnT experiment, a LXe dual-phase TPC for direct dark matter searches, $^{214}$Pb represents the dominant contribution in the electron recoil background below 40 keV.
This isotope undergoes beta decay into several $^{214}$Bi excited states, generating electron/gamma events in...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation neutrino experiment currently under construction. DUNE will consist of two high-resolution neutrino interaction imaging detectors exposed to the world’s most intense neutrino beam, with the Near Detector at Fermilab and the Far Detector 1,300 km away in the Sanford Underground Research Facility in South Dakota, US.
The...
Liquid Argon Time Projection Chamber (LArTPC) is a premier technology in neutrino detector designs. The field response model describes the electric currents induced in the anode plane when ionization electrons drift in the chamber. Field response is critical for TPC readout simulation and charge reconstruction. A novel pixelated charge readout technology, LArPix, has been developed for...
Neutrino emission can be expected from Gamma Ray Bursts (GRBs) through hadronic interactions, though the exact neutrino flux may vary depending on the GRB environment. To test the neutrino emission at different energies in different environments and improve the description of low-energy or thermal contributions, we created a model calculating the neutrino yield from GRB internal energy...
In the next ten years, neutrino telescopes will become increasingly sensitive to galactic neutrinos, the flux of neutrinos produced by astrophysical sources and in cosmic ray interactions within our galaxy. This new flux offers a promising laboratory for exploring beyond the standard model neutrino physics dependent on ultra-long baselines. However, searches for these BSM signals will require...
DUNE is a leading-edge experiment for neutrino oscillation physics and is
currently under construction in the United States, between Fermilab, where
neutrino beam is generated, and the SURF underground laboratory, in South
Dakota, hosting the Far Detector at a depth of 4,850 mwe and at a baseline
of nearly 1,300 km. GRAIN (GRanular Argon for Interactions of Neutrinos) is
the Liquid Argon...
The TAMBO experiment aims to investigate the tau neutrino component within the astrophysical neutrino flux. One of our ongoing endeavors involves identifying the optimal data acquisition system (DAQ) to be used in conjunction with the synchronization system. The synchronization system plays a crucial role in identifying the air shower initiated by the tau lepton as it exits the rock.
In...
Demonstrating a highly efficient single ion barium tagging sensor could reduce backgrounds in searches for neutrinoless double beta decay ($0\nu\beta\beta$) to negligible levels in ton to multi-ton scale experiments. The NEXT collaboration is pursuing a phased program aimed at searching for $0\nu\beta\beta$ utilizing high-pressure xenon gas time projection chambers (TPC) with the introduction...
IceCube-Gen2 is a planned extension of the IceCube Neutrino Observatory at the geographic South Pole. The array is optimized to search for sources of astrophysical neutrinos from TeV to EeV energies. IceCube-Gen2 builds on more than a decade of successful scientific observations with IceCube. The observatory will utilize optical sensor modules integrated into the deep ultra-clear Antarctic ice...
KM3NeT is a European research infrastructure building second-generation neutrino telescopes in the Mediterranean Sea, comprising in its final configuration a network of detectors that will cover more than one cubic kilometre of deep seawater. KM3NeT/ARCA is part of the KM3NeT research infrastructure and focuses on the detection of high energy neutrinos (>TeV) from astrophysical sources. The...
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator detector located 700 m underground at 52.5 km from two Nuclear Power Plants (NPP) in China. The primary physics goal of JUNO is to determine the neutrino mass ordering by measuring the electron antineutrino ($\bar{\nu}_e$) oscillated spectrum with excellent energy resolution. This requires a very accurate...
T2K is a long-baseline accelerator neutrino experiment that has delivered world-leading measurements of the atmospheric mixing angle and the magnitude of CP-violation in neutrino oscillations. Here we show that Bayesian analyses using the PDG parameters benefit certain flavour symmetries through their choice of uniform prior, and we consider alternate parameterisations that exhaust choices of...
The IceCube Neutrino Observatory is sensitive from 0.5 GeV to the PeV energy range for astrophysical neutrino searches. In addition, the supernova Data Acquisition System (DAQ) allows the collaboration to be sensitive to close-by core-collapse supernovae at MeV energies. There exists, however, a gap between these covered energy ranges. This poster presents ongoing efforts to cover this gap. We...
LEGEND-1000 is a next-generation ton-scale experiment searching for neutrinoless double beta decay of $^{76}$Ge using p-type, high-purity germanium detectors. The experiment is planned for 1000 kg of Ge detectors enriched to more than 90$\%$ in $^{76}$Ge.
The experiment is going to be installed at LNGS (3800 mwe) to reduce direct and induced backgrounds from cosmic rays.
While standard...
Large-scale 6Li-doped pulse shape sensitive plastic scintillator is one of several technologies under development within the Mobile Antineutrino Demonstrator project. Liquid scintillator with similar capabilities was one of key aspects of the aboveground reactor antineutrino detection demonstration by the PROSPECT experiment. However, a plastic material is considered a requirement for truly...
The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne scale detector designed to search for neutrinoless double beta decay ($0\nu\beta\beta$) in $^{130}$Te. The CUORE detector is made of 988 TeO$_{2}$ crystals operated at around 15 mK in the Gran Sasso National Laboratory(Italy).
The unfolding of the experimental backgrounds is of primary importance in discovering a very...
The observation of neutrinoless double beta (0ν2β) decay would give information on lepton number violation, as well as on the neutrino mass and nature (Dirac or Majorana particle). The CROSS project (Cryogenic Rare event Observatory with Surface Sensitivity) uses bolometers with embedded with Mo100 and Te130 isotopes, which are susceptible to decay through this hypothetical process. The CROSS...
Next generation neutrinoless double beta experiments aims at covering the inverted hierarchy region of the neutrino mass spectrum, with sensitivities on the half-lives greater than 10$^{27}$ years. The CUPID experiment will exploit cryogenic calorimeters to search for neutrinoless double beta decay of $^{100}$Mo. To reach the target sensitivities one of the key requirements is the...
NOvA is a long baseline neutrino oscillation experiment, using Fermilab's NuMI beam and a functionally identical near and far detector. NOvA measures muon neutrino disappearance and electron neutrino appearance to probe neutrino oscillation parameters, including the large neutrino mixing angle, the mass ordering, and the CP-violating phase. NOvA has developed a Bayesian analysis in addition to...
The domain of low energy neutrinos is at the edge of making important measurements, among which the Diffuse Supernova Neutrino Background and the Upturn of the electron flavor survival probability of solar neutrinos. In this context, the next generation of Cherenkov detectors will need algorithms that outperform traditional regression algorithms to reconstruct both low and high energy charged...
BINGO is a project dedicated to explore and demonstrate new methods for background reduction in cryogenic calorimetric $0\nu\beta\beta$ searches. With a target background index at the level of $10^{-5}$ counts/(keV kg yr) it aims at providing a path towards a nearly background free $0\nu\beta\beta$ experiment with a tonne of the isotopes of interest $^{100}$Mo and $^{130}$Te. The major design...
Experiments searching for neutrinoless double beta decay (0νββ) are pushing the boundaries of technology to achieve sensitivities to half-lives on the order of 10$^{28}$ years or beyond. A promising approach involves detecting the daughter barium ion generated in the double beta decay of $^{136}$Xe. The NEXT collaboration is investigating chemical sensors to identify the Ba$^{2+}$ coinciding...
The Deep Underground Neutrino Experiment, DUNE, is a next-generation, long-baseline, neutrino experiment, and flagship project for the U.S. It is poised to perform some of the most precise measurements of the properties of neutrinos in order to elucidate their role in the outstanding matter-antimatter asymmetry. DUNE will make use of the most intense neutrino beams produced by the Fermi...
We investigate the possibility of using the Short Baseline Near Detector at Fermilab, with and without employing the PRISM concept, to constrain the pion and kaon leptonic flavor (and number) violating decays. We show that we can put stringent limits on the flavor violating branching ratios.
The upgrade of the T2K near detector, ND280, will improve the physics capabilities of the experiment, including a reduced proton momentum threshold, increased angular acceptance, and the ability to reconstruct neutron kinematics on an event by event basis. Central to the near detector upgrade is the Super Fine Grained Detector (SuperFGD), which consists of approximately two million optically...
Observation of high-energy neutrinos from the direction of nearby active galaxy, NGC 1068, was a major step in identifying for the origin of high-energy neutrinos. This observation revealed that high-energy neutrinos originated at the heart of active galaxies which are opaque to gamma-ray emission. The realization that is reinforced by the excess of neutrinos in the direction of NGC 4151,...
The Super Fine-Grained Detector (SFGD) is part of a significant upgrade to the near detector in the Tokai to Kamioka (T2K) long-baseline neutrino experiment. It serves to provide excellent precision in measurements of neutrino cross-sections, mass ordering and Charge-Parity asymmetry. With almost 2 million plastic scintillator cubes threaded with wavelength shifting fibres to make up about...
T2K (Tokai to Kamioka) is a long baseline neutrino experiment located in Japan\cite{t2k}. Over the last few years, the experiment has been focused on the study of the $\delta_{CP}$ phase parameter of the PMNS matrix, which may introduce a Charge-Parity violation component in the Leptonic Sector. \
T2K has entered its Second Phase, characterized by upgrades of the Beam Line and of the Near...
We derive the complete set of one-loop renormalization-group equations (RGEs) for the operators up to dimension-six (dim-6) in the seesaw effective field theories (SEFTs). Two kinds of contributions to those RGEs are identified, one from double insertions of the dimension-five (dim-5) Weinberg operator and the other from single insertions of the tree-level dim-6 operators in the SEFTs. A...
With detectors at both Fermilab and Ash River, Minnesota, in the United States, NOvA was built to investigate the intricate properties of neutrinos, with a principal emphasis on active three-flavour neutrino mixing phenomena. Comprising two functionally identical detectors, with the Near Detector located 1 km below ground at Fermilab and the Far Detector, located 810 km away and 14 mrad off...
The Short Baseline Neutrino program at Fermilab aims to explore significant regions of parameter space, applicable to sterile neutrinos at the eV mass scale, as suggested by existing experimental anomalies. To this purpose it exploits Liquid Argon Time Projection Chamber detectors located along the Booster Neutrino Beamline to measure both νe appearance and νµ disappearance: the Short Baseline...
We study the conditions under which the Majorana phase of the two flavor neutrino mixing matrix appears in the oscillation probabilities and causes $CP$ violation. We find that the Majorana phase remains in the neutrino evolution equation if the neutrino decay eigenstates are not aligned with the mass eigenstates. We show that, in general, two kinds of $CP$ violation are possible: one due to...
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment at Gran Sasso National Laboratory in Italy primarily searches for neutrinoless double-beta (0$\nu\beta\beta$) decay of $^{130}$Te. The CUORE detector consists of a close-packed array of 988 TeO$_2$ calorimetric detectors cooled to below 15 mK using a custom-built cryogen-free dilution refrigerator. The experiment is the...
The MicroBooNE detector, an 85-tonne active mass liquid argon time projection chamber (LArTPC) at Fermilab, is ideally suited to search for physics beyond the standard model due to its excellent calorimetric, spatial, and energy resolution. This poster will present several recent results using data recorded with Fermilab’s NuMI neutrino beam: a first search for dark-trident scattering in a...
Currently, the ICARUS-T600 liquid argon TPC is collecting data exposed to Booster Neutrino and Numi off-axis beams within the SBN program at Fermilab. A light detection system, based on PMTs deployed behind the TPC wire chambers, is in place to detect vacuum ultraviolet photons produced by ionizing particles in LAr. This system is fundamental for the detector operation, providing an efficient...
The Daya Bay Reactor Neutrino Experiment was designed with the primary goal of precisely measuring the neutrino mixing parameter, $\theta_{13}$. Eight identically-designed liquid scintillator detectors installed in three underground experimental halls measure the reactor antineutrinos from six nuclear reactors with different distances. In addition to the precise measurement via neutron capture...
The IceCube Neutrino Observatory at the South Pole has sensitivity to all three active neutrino flavors created by atmospheric and astrophysical sources, spanning six orders of magnitude in energy. Using ten years of data and convolutional neural networks to identify astrophysical tau neutrino morphologies, we detected seven tau neutrino candidates on an estimated background of approximately...
The NOvA experiment presents new measurements of the neutrino oscillation parameters obtained through a fit to data from the one megawatt NuMI neutrino beam in the NOvA detectors. The analysis uses muon-neutrino disappearance and electron-neutrino appearance in both neutrino and antineutrino beam polarities. With the addition of $\sim100\%$ more neutrino-mode beam exposure over the previously...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation neutrino experiment that will consist of a near detector (ND) complex placed at Fermilab, several hundred meters downstream of the neutrino production point, and a larger far detector (FD) to be built in the Sanford Underground Research Facility (SURF), approximately 1300 km away. DUNE will record neutrino interactions from...
The discovery of neutrinoless double beta decay ($0\nu\beta\beta$) would be a huge step in the understanding of the nature of the neutrino. SuperNEMO is an experiment designed to search for $0\nu\beta\beta$, whose demonstrator module is located in Modane Underground Laboratory in France (4800 m.w.e). It uses a unique technique combining a tracker and a segmented, scintillator-based calorimeter...
Many current and future accelerator neutrino oscillation experiments, such as DUNE, rely on liquid argon time projection chamber (LArTPC) as the primary detection technology, benefiting from the high light yield from the liquid argon scintillation. However, propagating the scintillation light from the production to the readout channels is typically computationally challenging. A common...
In recent years, the multi-messenger approach in Astrophysics has become a real game changer for better understanding the still unclear phenomena in our universe.
Neutrino telescopes can play a key role by highlighting the hadronic component of such phenomena, testing the known γ-ray sources.
In this contribution, we report the combined analyses of the data collected by two neutrino...
The Diffuse Supernova Neutrino Background (DSNB) is a theoretical astrophysical prediction of a collection of neutrinos from all core-collapse supernovae that ever existed in the Universe. It is yet to be observed. This presentation will showcase the latest results from the gadolinium-loaded Super-Kamiokande (SK) experiment and how it excludes certain theoretical models. While SK is primarily...
The Deep Underground Neutrino Experiment (DUNE), a pioneering project underway in the US, involves the construction of a next-generation neutrino experiment. This experiment features a broadband neutrino beam spanning from Fermilab to the Sanford Underground Research Facility (SURF) in Lead, South Dakota, incorporating a high-precision near detector and a substantial liquid argon...
The Deep Underground Neutrino Experiment (DUNE) is a next generation experiment designed to measure the neutrino and anti-neutrino oscillation probabilities, using a high-intensity neutrino beam (1.2-2.4 MW) produced at Fermilab. With a baseline of 1300 km and large (kton-scale) LArTPC detectors, DUNE will provide an unprecedented precision in measuring the oscillation parameters. Neutrinos...
In this work we have investigated neutrino oscillation in the presence of gravity, in particular the contorsion, which is the non-dynamical part of spin connection. The contraction of contorion field with tetrad gives us torsional coupling constants which can be probed by future long-baseline neutrino experiments like DUNE and P2SO. We use the notations $\lambda_{21}^{\prime}$ and...
The Deep Underground Neutrino Experiment (DUNE) will advance the field of neutrino oscillation to the precision era, independently measuring the entire set of oscillation parameters, thanks to Liquid-Argon TPC technology. The Photon Detection System (PDS) will expand the scientific program of the experiment by providing triggers for non-beam events (atmospheric, solar, and supernova neutrinos)...
The ProtoDUNE experiment is a full engineering prototype of the DUNE far detector, and took test beam data at CERN. ProtoDUNE-SP is the largest Liquid Argon Time Projection Chamber (LArTPC), which contains about 770 tons of liquid argon, with 420 tons in the active volume. The beam of the tertiary particles was designed to cover the expected spectrum of particles from neutrino interactions in...
The current and next generation of long-baseline neutrino experiments are bringing about the era of precision neutrino oscillation measurements. New detectors, technologies and analysis techniques are being developed to meet the challenges posed by these precision measurements. Water Cherenkov neutrino experiments have played a crucial role in neutrino discoveries over the years, providing a...
In core-collapse supernovae and neutron star mergers, the neutrino density is so large that neutrino-neutrino refraction can lead to collective flavor conversions independent of vacuum mixing. These are called fast flavor conversions since the neutrino self-interaction strength $\mu$ represents the characteristic time scale of the system. In the limit of vanishing vacuum mixing, one necessary...
The ANTARES neutrino telescope stopped gathering data in February 2022,
after nearly 16 years of operation. The detector consisted of 12 vertical lines forming a 3D array of photo-sensors, which instrumented about 10 megatons of Mediterranean seawater. We present a method using Deep Learning that improves the direction reconstruction of single-line events, for which the reconstruction of the...
The precise measurement of neutrino properties is a top priority in fundamental particle physics. Accelerator-based neutrino experiments provide a unique framework for such studies, offering oscillation measurements and insights into CP violation in the leptonic sector. The next-generations experiments aim to establish mass ordering and possibly discover charge-parity violation with 5σ...
Recent discoveries made by neutrino telescopes such as the IceCube Neutrino Observatory relied extensively on machine learning tools to infer physical quantities from the raw photon hits detected. Reconstruction algorithms are limited by the sparse sampling of photons by the optical modules due to the relatively large spacing (10 − 100 m) between them in the detector. In this paper, we propose...
The Photon Detection System (PDS) of the first two DUNE far detectors, FD1 and FD2, is
composed of large area photon detection units named X-Arapuca; they embed large area PMMA based wavelength shifting lightguides and dichroic filters custom developed and produced for the LAr environment.
The PDS will complement and boost the calorimetry of the LArTPC, enable the detection of non beam...
Hybrid neutrino detectors utilize both Cherenkov and scintillation light, combining the lower energy threshold of pure scintillators with the enhanced direction resolution of water. These detectors offer improved performance capabilities for fundamental physics goals as well as applications such as nuclear nonproliferation. Benchtop-scale experiments have shown success in...
The ICARUS T600 LArTPC detector was refurbished after an initial run at
the underground LNGS labs and is currently taking data within its experimental hall at Fermilab after full commissioning. Regular data taking began in May 2021 with neutrinos from the Booster Neutrino Beam (BNB) and the Neutrinos at the Main Injector (NuMI) off-axis beam. As the far detector of the Short-Baseline Neutrino...
DUNE’s Near Detector utilizes new technological advancements for Liquid Argon (LAr) Time Project Chambers (TPC), including a modular design and pixel plane charge readout as opposed to the usual wire plane readouts. The full detector will be composed by 5x7 modules, but a demonstrator prototype with 2x2 modules is currently assembled and will take DUNE’s first neutrino beam data at Fermilab. A...
Sterile neutrinos, postulated as neutral leptons with no standard weak interactions, can be searched for through their mixing with active neutrinos in kinematic neutrino-mass experiments. The KArlsruhe TRItium Neutrino (KATRIN) experiment carries out precision tritium $\beta$-decay spectroscopy close to the kinematic endpoint. While the primary goal is the neutrino-mass measurement with a...
ESSnuSB is a next-to-next generation long baseline neutrino oscillation experiment which aims to the precise measurement of the CP-violation in the leptonic sector studying neutrino oscillation at the second atmospheric maximum. The unique features of this experiment provide a great environment where to search for tiny new physics effects in neutrino oscillation beyond the three neutrino...
LEGEND1000 is a ton scale experiment searching for neutrinoless double beta ($0\nu\beta\beta$) decay of $^{76}$Ge. The experiment uses High Purity Germanium (HPGe) crystals, which, enriched by $^{76}$Ge, serve as source and detector simultaneously. The discovery potential of LEGEND1000 lies at half-lives greater than $10^{28}$ years.
Due to the complexity of the data produced by this...
CUORE is a ton-scale experiment designed for the search of the neutrinoless double beta ($0\nu\beta\beta$) decay of $^{130}$Te. Hosted in Italy at the Gran Sasso National Laboratory (LNGS), CUORE consists in an array of 988 cryogenic calorimeters operated below $\simeq$15 mK.
Experiments working at the millikelvin-scale are usually characterized by very good energy resolution. However, they...
The IceCube Neutrino Observatory is a one-cubic-kilometer-sized neutrino telescope deployed in the deep Antarctic ice at the South Pole. One of IceCube’s major goals is finding the origin of astrophysical high-energy neutrinos. In 2022, IceCube published the results of a search for astrophysical point-like sources of neutrinos in the Northern Sky using 9 years of events produced by...
As more measurements on various event topologies of neutrino-nucleus interactions become available, Monte Carlo (MC) prediction from neutrino event generators, such as GENIE, shows considerable deviation from some data sets while matching others relatively well. In this work, we present the first global analysis, enabled by the GENIE global analysis framework, of four Transverse Kinematic...
This poster presents new results from the first joint oscillation analysis of atmospheric neutrinos at Super-Kamiokande (Super-K) and accelerator neutrinos at Tokai-to-Kamioka (T2K). Leveraging Super-K atmospheric neutrinos, which are sensitive to mass ordering, and T2K accelerator neutrinos, which are sensitive to the CP violation phase, the joint analysis is able to improve sensitivity by...
KM3NeT/ORCA is a water Cherenkov neutrino telescope under construction in the Mediterranean sea. With ORCA, the KM3NeT collaboration will measure atmospheric neutrino oscillations to determine the neutrino mass ordering and constrain the oscillation parameters $Δm_{31}^2$ and $θ_{23}$. In addition, Beyond the Standard Model hypotheses can be tested. In this contribution, the sensitivity of...
This poster presents the first measurement of cosmogenic $^8$He isotope production in liquid scintillator at Daya Bay, using an innovative method for identifying cascade decays of $^8$He and its child isotope, $^8$Li. We also measure the production yield of $^9$Li isotopes using two independent methods. The results, in units of $10^{-8}\mu^{-1}\rm g^{-1}cm^{2}$, are 0.307$\pm$0.042,...
LEGEND-200 is an experiment designed to search for neutrinoless double beta decay ($0\nu\beta\beta$) in $^{76}$Ge at LNGS in Italy. The sensitivity of $0\nu\beta\beta$ experiments is strongly affected by the background level. LEGEND-200 aims to reach a background index of $2\times 10^{-4}$ counts/keV/kg/yr at $Q_{\beta\beta}$. With an exposure of 1 tonne-yr this would lead to a half-life...
The search for neutrinos with energies greater than $10^{17}~$eV is being actively pursued. Although normalization of the dominant neutrino flux is highly uncertain, a floor level is guaranteed by the interactions of extragalactic cosmic rays with Milky Way gas. We estimate that this floor level gives an energy flux of $E^2\phi_\nu\simeq 10^{-13^{+0.5}_{-0.5}}~$GeV~cm$^{-2}$~sr$^{-1}$~s$^{-1}$...
In 2021, the MAJORANA DEMONSTRATOR experiment concluded its investigation into neutrinoless double beta decay involving $^{76}$Ge. Proven to be one of the world's ultra-low-background facilities, we adapted the apparatus to explore the rare decay of a distinct isotope. Notably, in nature $^{180m}$Ta stands as the sole known isotope existing in an isomeric state rather than the ground state. ...
The KM3NeT next generation deep-sea neutrino telescopes are currently under construction in the Mediterranean Sea. Two water-Cherenkov neutrino detectors, ARCA and ORCA, are located in two different sites, south-est of Portopalo di Capopassero (Italy) and close to Toulon (France), respectively. The KM3NeT/ARCA telescope, a cubic kilometer volume detector, is optimised for the detection of...
Long baseline neutrino experiments are moving toward precision measurements of the oscillation parameters; namely the CP violation phase, the mass ordering or the octant of $\theta_{23}$. This means systematic uncertainties must be reduced to few percent level, especially those related to neutrino interactions. This is usually done by using near detector data to constrain theoretical models....
Following the exciting discovery of astrophysical neutrinos and subsequent studies of their origins by IceCube, future improved all-flavor neutrino detection would allow for a strong probe into the abundant physics lying within these astrophysical sources. The main challenge in flavor identification is to break the degeneracy among cascade events and separate out the interactions due to tau...
MicroBooNE, a Liquid Argon Time Projection Chamber (LArTPC) located in the $\nu_{\mu}$-dominated Booster Neutrino Beam at Fermilab, has been studying $\nu_{e}$ charged-current (CC) interaction rates to shed light on the MiniBooNE low energy excess. The LArTPC technology employed by MicroBooNE provides the capability to image neutrino interactions with mm-scale precision. Computer vision and...
The reliable estimation of accelerator neutrino beam fluxes is important for precise neutrino oscillation measurements in searching for CP violation in the leptonic sector. In long-baseline neutrino experiments, the neutrino flux uncertainties contribute significantly to uncertainties in neutrino oscillation parameters. Hadron production is the largest component of the flux uncertainty, so...
Identification of background radiation is of utmost importance for enabling rare event experiments. The Neutrinoless double beta decay experiment LEGEND, utilizes background suppression to reach sensitivities of $T_{1/2}>10^{28}$yrs with the isotope $^{76}$Ge. Poly(ethylene-2,6-naphthalate) (PEN) has emerged as a highly promising material for LEGEND due to its intrinsic scintillating...
The NOvA experiment’s most recent search for eV-scale sterile neutrinos is systematically limited in the region of parameter space where $\Delta m^2_{41} \gtrsim 1~\mathrm{eV}^2$. This region of parameter space is preferred by sterile neutrino interpretations of current experimental anomalies; improving sensitivity here is high-priority. When added directly into the fit, additional data...
Cryogenic calorimeters are particle detectors that measure energy as a temperature rise. To achieve adequate sensitivity, they must be operated at $\sim$10mK, where they achieve optimum energy resolution. When using a scintillating crystal as a particle absorber, reading the scintillation light from a second cryocalorimeter provides particle identification. Both elements have NTD thermistors...
Underwater or in-ice neutrino oscillation experiments, which detect the products of neutrino interactions via Cherenkov radiation, have traditionally reconstructed events using a ‘track’ or ‘shower’ event classification scheme. At the neutrino energies of interest to these experiments, deep inelastic scattering is the dominant interaction mechanism. As a result, a hadronic shower is always...
Jiangmen Underground Neutrino Observatory (JUNO), under construction in South China, is designed to resolve the neutrino mass ordering using the oscillatory pattern of the electron anti-neutrinos produced in nuclear reactor cores. With a baseline of 52.5 km and a fine energy resolution of 3% at 1 MeV, JUNO will allow for the observation of two neutrino oscillation modes simultaneously,...
Hyper-Kamiokande is the next generation Water Cherenkov experiment in Japan, which will study with unprecedented precision the oscillations of different types of neutrinos, as well as neutrinos of astrophysics origin. The inner part of this massive new detector will be instrumented with 20000 high precision photomultiplier tubes (PMT). The R12860 PMT was developed by Hamamatsu Photonics for...
Building upon the LEGEND-200 experimental program, LEGEND-1000 is an upcoming ton-scale experiment in search of Neutrinoless Double Beta Decay ($0\nu\beta\beta$). Consisting of over 300 $\sim$3 kg germanium detectors surrounded by an instrumented liquid argon shield, L-1000 aims to make a 99.7% CL discovery of $0\nu\beta\beta$ with sensitivity covering the full inverted neutrino mass ordering,...
We explore the connection between low-scale CP-violating Dirac phase $(\delta)$ and high-scale leptogenesis in a Left-Right Symmetric Model (LRSM) with scalar bidoublet and doublets. The fermion sector of the model is extended with one sterile neutrino $(S_L)$ per generation to implement a double seesaw mechanism in the neutral fermion mass matrix. The double seesaw is performed via the...
The Deep Underground Neutrino Detector (DUNE) is a long-baseline neutrino oscillation experiment currently under construction at the Sanford Underground Research Facility, with a near detector planned for installation at Fermi National Laboratory. Prototypes for Near and Far Detector components have already recorded data from cosmic rays and mixed hadron beams; however, the 2x2 Demonstrator,...
One of the longest-standing sterile neutrino anomalies is the Gallium anomaly in which transition from electron neutrino to sterile neutrino oscillation on the meter scale has been suggested as a solution to measured electron neutrino deficit originally observed in GALLEX and SAGE experiments, and more recently in the BEST experiment in which a 4 sigma significant deficit of electron neutrinos...
The LEGEND-200 experiment at Laboratori Nazionali del Gran Sasso, is designed to search
for neutrinoless double beta decay of 76Ge. The experiment uses about 200 kg of high-purity
germanium (HPGe) detectors, enriched in 76Ge, deployed within a cryostat filled with liquid
argon (LAr). The LAr acts as a cooling medium and as an active shield. The LAr
instrumentation is deployed in LEGEND-200...
The MicroBooNE detector is a liquid argon TPC located in the Booster Neutrino Beamline at Fermilab. Leveraging the unique capabilities of the LArTPC technology to distinguish photons from electron showers, one of MicroBooNE's primary goals is to investigate MiniBooNE low energy excess (LEE), an anomalously large observed rate of events containing a single electromagnetic shower. This...
Radioanalytical chemistry methods and techniques have recently been widely involved in very low-level radioactivity measurements for physics experiments searching for extremely rare events. All experiments searching for events with elusive rates are bound by the unavoidable necessity to reduce to zero background levels and enlarge a target material to identify feeble signals. The need to...
The Search for Hidden Particles (SHiP) experiment will be the new flagship project of the CERN Physics Beyond Colliders intensity frontier, featuring a dedicated Beam Dump Facility (BDF) at CERN's North Area ECN3 to exploit the full potential of the 400 GeV SPS proton beam.
The experiment is realised by a two-fold detector setup enabling a diverse physics program: While the Hidden Sector...
One of the primary oscillation physics goals of the Deep Underground Neutrino Experiment (DUNE) far detector (FD) is the measurement of CP violation in the neutrino sector. To achieve this, DUNE plans to employ large-scale liquid-argon time-projection chamber technology to capture neutrino interactions in unprecedented detail. Such fine-grain images demand a highly sophisticated automated...
Cosmic muon interactions leading to the in-situ production of long-lived radioisotopes may introduce a significant background in the context of rare event searches conducted deep underground. Specifically, the delayed decay of $^{77(m)}$Ge emerges as the primary contributor from in-situ cosmogenic sources for the neutrinoless double-beta decay search with $^{76}$Ge. The future LEGEND-1000...
SNO+ is an operational kiloton-scale multipurpose neutrino experiment loaded with linear alkylbenzene-based scintillator. SNO+ analyses have traditionally reconstructed event positions by maximizing a complex likelihood function based on PMT hit times. Machine learning presents an interesting alternative to likelihood for reconstruction problems, being able to learn corrections to averaged...
Pu-241 is a newly proposed nuclide for studying the nature of neutrinos to complement tritium-based experiments. Pu-241 decays into Am-241 via first-forbidden non-unique beta minus decays with 20.8-keV Q-value and 14.3-year half-life, making it suitable for keV sterile neutrino search as well as active neutrinos mass measurement. MAGNETO-v experiment uses magnetic microcalorimeters in...
Current bounds on neutrino Majorana mass are affected by significant uncertainties in the nuclear calculations for neutrinoless double-beta decay. A key issue for a data-driven improvement of the nuclear theory is the actual value of the axial coupling constant g$_A$, which can be investigated through forbidden β-decays. In this contribute, we present the [first measurement][1] of...
Discovering neutrinoless double-beta decay ($0\nu\beta\beta$) would be a huge step in understanding the neutrino's nature. The SuperNEMO experiment is designed to search for $0\nu\beta\beta$, using its Demonstrator Module in LSM, Modane, France, at a depth of 4800$\,$m.w.e. Its tracker and segmented, scintillator-based calorimeter enable unambiguous particle identification, time-of-flight and...
LArIAT is a liquid argon time projection chamber (LArTPC) experiment in a test beam at Fermilab from 2015 to 2017 to understand and characterize interactions of particles in LAr which are commonly observed in neutrino-Ar final-states. Tracks for pions and muons in LArTPCs are difficult to differentiate since both particles exhibit very similar ionization profiles for muon and pion that stop in...
The Payload for Ultrahigh Energy Observations is a balloon-borne detector for astrophysical neutrinos with energies in the EeV range. Flying on a long duration balloon over Antarctica, it will measure the radio signals from particle showers that are produced when UHE neutrinos interact within the ice.
A neutrino undergoing charged current interaction will also result in a charged lepton,...
Neutrons produced in neutrino interactions tend to represent considerable missing energy, leading to biases in neutrino energy estimates, which in turn can produce biases in measured oscillation parameters. However measuring neutron production in neutrino interactions is challenging. In this poster we present a method for identifying neutrons produced in neutrino interactions in the...
Neutrons pose a significant challenge in neutrino experiments where energy reconstruction is critical. The behavior of neutrons is particularly model-dependent because they can take away interaction energy that is largely unseen owing to their non-ionizing nature. Below 20 MeV, many interaction models, like Geant4, employ measurements of final-state particle content to produce accurate neutron...
Searching for high-energy neutrino emission from Seyfert Galaxies has
become paramount since the IceCube evidence of neutrino emission from NGC 1068. In
this contribution, we present a binned likelihood stacking search for Seyfert Galaxies,
exploiting both KM3NeT/ARCA and ANTARES data. First, we perform a model-
dependent search, testing the state-of-the-art hot corona neutrino modelling...
The MAJORANA DEMONSTRATOR was a neutrinoless double-beta decay ($0\nu\beta\beta$) experiment containing ~44 kg of p-type point contact germanium detectors, of which ~30 kg were enriched to 88% in $^{76}$Ge. The DEMONSTRATOR’s low background rate and excellent energy resolution of 2.52 keV at the $0\nu\beta\beta$ Q-value allowed it to set a lower limit of $8.3 \times 10^{25}$ yrs on the...
The X-ARAPUCA is the latest iteration of a family of devices capable of detecting single photons from liquid argon scintillation, serving as the building blocks of DUNE's Photo Detection System. Along with the instrumentation for the device, a full physics simulation called ArapucaSim was created that can replicate the observed efficiencies of real devices. This makes it a useful tool for...
Knowledge of the neutrino flux is necessary to precisely measure neutrino oscillation parameters with accelerator-generated neutrino beams. Hadron production is a dominant source of neutrino flux uncertainty in long-baseline neutrino experiments, such as NOvA, T2K, and DUNE. These uncertainties are reduced by precisely measuring hadron-nucleus interactions in the target materials used to...
A simulation of the neutrino beam for the upcoming Hyper-Kamiokande (Hyper-K) experiment is essential for predicting neutrino fluxes accurately at the near and far detectors, which is crucial for measuring various neutrino oscillation parameters such as mixing angles, mass differences and the CP-violating phase. G4Jnubeam is a new beam simulation software based on the GEANT4 package currently...
The Deep Underground neutrino experiment (DUNE), consisting of near (DUNE-ND) and far (DUNE-FD) detectors, is a long-baseline experiment that is designed to measure neutrino oscillations, as well as searches beyond the standard model. The DUNE-FD will operate with a total volume of 70 kiloton liquid argon and will be situated at Sanford Underground Research Facility (SURF) in South Dakota. The...
The field of neutrino oscillation study is full of unique and insightful experiments, and global fits can be conducted to study their results in a unified and coherent approach, exploiting the strengths of the different experiments. For the success of a global study, factors such as experiment modelling, parameter space exploration, and statistical interpretation are of vital importance.
In...
Liquid Argon Time Projection Chamber (LArTPC) detectors offer impressive charged particle imaging capability with high spatial resolution. Precise event reconstruction procedures are mandatory in order to fully exploit the potential of this technology.
The ICARUS collaboration employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratory. A...
We discuss a left-right (L-R) symmetric model with
the double seesaw mechanism at the TeV scale generating Majorana
masses for the active left-handed (LH) flavour neutrinos
$\nu_{\alpha L}$ and the heavy right-handed (RH) neutrinos $N_{\beta R}$, $\alpha,\beta = e,\mu,\tau$, which in turn mediate lepton number violating processes, including neutrinoless double beta decay.
The Higgs...
The Cryogenic Underground Observatory for Rare Events (CUORE) is a ton scale experimental search for 0$\nu\beta\beta$ decay on ${}^{130}$Te. The CUORE detector consists of 988 TeO$_2$ crystals operating as cryogenic bolometers at the Gran Sasso National Laboratory (LNGS) in Italy. While simulations suggest that about 11\% of 0$\nu\beta\beta$ decay events deposit energy in more than one...
This work investigates the physics potential of hypothetical large-scale detectors observing the interactions of neutrinos produced in proton-proton collisions at the LHC. We focus on the LHCb interaction point, as the forward neutrino flux from this location passes through Lake Geneva before exiting the Earth's surface. This offers two interesting possibilities: (1) a long pipe-like detector...
We present the method of determination of neutron capture cross section on Carbon with 3158 days of operation of Daya Bay reactor antineutrino experiment through the inverse beta decay reaction. The detection process involves the annihilation of a positron followed by a thermalized neutron capture event. In Daya Bay experiment, three predominant forms of neutron capture events emerge:...
The Deep Underground Neutrino Experiment (DUNE) wants to advance our understanding of neutrinos with remarkable precision. The main sources of detector systematic uncertainties are limitations of calibration and modeling of particles in the detector. Neutrons especially can account for up to 20% of the energy response uncertainty. In order to facilitate more accurate neutrino measurements in...
T2K (Tokai to Kamioka) is a Japan-based long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations. A muon (anti-)neutrino beam peaked around 0.6 GeV is produced in Tokai and directed toward the water Cherenkov far detector Super-Kamiokande (SK) located at 295 km. The ND280 is used to characterise the neutrino beam before the oscillation, and its data...
The Super-Kamiokande (SK) experiment has the world's leading sensitivity to the astrophysical electron anti-neutrinos up to a few tens MeV, such like supernova originating neutrinos. In 2020, SK was upgraded to enhance its neutron capture signal by loading gadolinium, termed as the SK-Gd phase. Since 2022, more Gd has been loaded to achieve about 75% of neutron captures on Gd. Thanks to this,...
NOvA is a long-baseline neutrino experiment at Fermilab that studies neutrino oscillations via electron neutrino appearance and muon neutrino disappearance. The oscillation measurements compare the Far Detector data to an oscillated prediction informed by the Near Detector (ND) data. This ND-informed prediction is produced from the neutrino generator GENIE, which provides NOvA with a set of...
In 2023, the MicroBooNE experiment published its first constraints on light sterile neutrino oscillations using neutrinos from the on-axis Booster Neutrino Beam (BNB). A limitation of this first result came from the cancellation between electron neutrino disappearance and muon neutrino to electron neutrino appearance oscillations leading to a degeneracy in the extracted oscillation fit...
The highly detailed images produced by liquid argon time projection chamber (LArTPC) technology hold the promise of an unprecedented window into neutrino interactions; however, traditional reconstruction techniques struggle to efficiently use all available information. This is especially true for complicated interactions produced by tau neutrinos, which are typically large, consist of many...
Super-Kamiokande is a large underground water Cherenkov detector for neutrino physics and nucleon decay search in Kamioka, Japan. We upgraded its detector with gadolinium (Gd) in 2020 (SK-Gd) to improve electron antineutrino ($\bar{\nu}_{\text{e}}$) identification. The higher energy yield from neutron capture of Gd enables the SK trigger system to apply to a lower energy region in...
P-ONE (Pacific Ocean Neutrino Experiment) is a future cubic-kilometre scale water Cherenkov neutrino telescope that will be located in the Pacific Ocean off the coast of Canada. P-ONE has a broad program including various topics in neutrino astronomy, oceanography and climate monitoring. The detector itself will be made of 70 lines consisting of 20 P-OMs (P-ONE optical modules) and connected...
Finding evidence of neutrinoless double beta decay would reveal the Majorana nature of the neutrino and give insight into the origins of the matter-antimatter asymmetry in the universe, the smallness of neutrino mass, and the symmetry structure of the Standard Model. The NEXT collaboration is developing a sequence of high pressure xenon gas time projection chambers with the aim of creating a...
The DUNE Far Detector will consist of four Liquid Argon TPC modules. One module will use the newly proposed Vertical Drift Technology, where the anode is made of 2 stacked drilled PCBs. A large scale prototype has been assembled at the CERN Neutrino Platform (ProtoDUNE-VD) and will start collecting cosmic data in fall 2024.
The ProtoDUNE-VD is made of 4 anode modules, which have all been...
The nEXO experiment, a pioneering initiative aimed at searching for the elusive neutrinoless double beta decay of $^{136}$Xe, sets an ambitious half-life sensitivity target exceeding $10^{28}$ years. The project utilizes a 5-tonne liquid xenon (LXe) Time Projection Chamber (TPC), right-cylindrical with a diameter of $1.3$ m. Achieving precise calibration of the detector's ionization and...
ESSnuSB (European Spallation Source neutrino Super-beam) is an upcoming accelerator-based neutrino oscillation experiment which aims to measure the leptonic CP violation phase by measuring at the second oscillation maximum. The neutrinos produced in the ESS will be detected at a distance of 360 km using half megaton underground water Cherenkov neutrino detector. Additionally, there is a...
In the neutrinoless double beta decay search using a low-temperature detector technique such as AMoRE, one of the major background sources at the energy range of interest is an accidental coincidence of two background signals at one crystal detector, so-called pile-up. While a large mass$\cdot$time exposure is the key parameter of the experimental sensitivity, the pile-up event rate ultimately...
NOvA is a long-baseline neutrino oscillation experiment with two functionally identical detectors, a Near Detector (ND) at Fermilab, placed 1km from the neutrino source, and a Far Detector (FD) located 810 km away from the ND in Minnesota. NOvA’s primary physics goals are to measure the neutrino oscillation parameters $\theta_{23}$ and $\Delta m^2_{32}$ with high precision, determine the...
Although the standard 3-flavor framework has been firmly established and
the phenomenon of neutrino oscillations is very well understood within this
framework, there are anomalies in the experimental data which cannot be ac-
commodated in this scenario. One of the explanations for these anomalies is
the extension of the 3-flavor paradigm with an additional sterile neutrino.
Although it is...
ZICOS is a one of future experiments for neutrinoless double beta decay using $^{96}$Zr nuclei. In order to achieve sensitivity over $10^{27}$ years, ZICOS will use tons of $^{96}$Zr, and need to remove $^{208}$Tl background events as observed by KamLAND-Zen one order of magnitude. For this purpose, we have developed new technique to distinguish the signal and background using a topology of...
During a core-collapse supernova, a large fraction of neutrinos come out from the proto-neutron star. Some of these neutrinos pair annihilate to produce an electron-positron pair. This process in the fireball is the main source of large GRB energy. In this poster, I will discuss interesting constraints on $Z^\prime$ couplings obtained from GRB observations. I will also discuss that the...
Neutrino-less double-beta (0νββ) decay is a rare nuclear process with profound implications for verifying the Majorana nature of neutrinos and determining their masses. The Majorana nature of neutrinos is crucial for understanding neutrino properties and the origin of the matter-dominant universe.
The KamLAND-Zen experiment, located at the Kamioka underground laboratory in Japan, has been at...
Ultra-High Energy (UHE) neutrinos, those with energy greater than 100 PeV, have yet to be observed but are theorized to originate from astrophysical and cosmogenic sources. The Askaryan Radio Array (ARA) is a UHE neutrino observatory located at the South Pole that was built to discover such UHE neutrinos. ARA is composed of 5 stations that are each made up of vertically and horizontally...
The Daya Bay experiment has accumulated the world’s largest reactor antineutrino sample, which enables several critical precise measurements. Based on about 4.7 million inverse beta decay (IBD) candidates recorded at the Daya Bay near detectors throughout their entire operational lifespan, we present the latest measurements of reactor antineutrino flux and spectrum in this poster....
The NOvA experiment uses the ~1 MW NuMI beam from Fermilab to study neutrino oscillations over a long distance. The experiment is focused on measuring electron neutrino appearance and muon neutrino disappearance at its Far detector situated in Ash River, Minnesota. NOvA was the first experiment in High Energy Physics to apply convolutional neural networks to the classification of neutrino...
The ForwArd Search ExpeRiment (FASER) is located at the LHC at CERN, investigating long-lived, weakly interacting particles produced in the far-forward region of the ATLAS interaction point. The FASER$\nu$ detector is composed of alternating emulsion films and tungsten plates, with multiple yearly exposures, and focuses on high-energy collider neutrino interactions in the TeV regime, with the...
Besides detecting ultra-high energy (UHE) cosmic rays, the Pierre Auger Observatory with its large Surface Detector array can also be used to search for neutrinos above $10^{17} \mathrm{eV}$. Using the data collected with the Observatory we have searched for both diffuse and point source fluxes of UHE neutrinos and to set some of the most stringent upper limits in the UHE range. Since its...
Located underground, at the Gran Sasso National Laboratory, the Cryogenic Underground Observatory for Rare Events (CUORE) is a neutrinoless double beta ($0\nu\beta\beta$) decay experiment employing bolometric detectors. CUORE consists of an array of 988 TeO$_2$ crystals acting as both the source and the detector for the search of $0\nu\beta\beta$ decay in 206 kg of $^{130}$Te. Although the...
The nuclear matrix element (NME) of neutrinoless double-β (0vββ) decay is an essential theoretical input for determining the neutrino effective mass, if the half-life of this decay is measured. The NME is also necessary for the detector design for the next generation of the 0vββ decay search. Reliable calculation of this NME has been a long-standing problem because of the diversity of the...
The Jinping Neutrino Experiment (JNE) is conducted at the China Jinping Underground Laboratory (CJPL), the deepest underground facility globally. JNE focuses on researching solar neutrinos, geo-neutrinos, supernova neutrinos, and neutrinoless double beta decay. The Jinping Neutrino one-ton prototype, located in CJPL-I, has completed measurements of cosmic rays and background. Currently, JNE is...
CUPID-Mo has served as a successful demonstrator experiment for CUPID (CUORE Upgrade with Particle ID), the planned next-generation upgrade of CUORE (Cryogenic Underground Observatory for Rare Events), a ton scale cryogenic calorimetric $0\nu\beta\beta$ decay experiment. CUPID-Mo operated at Laboratoire Souterrain de Modane (LSM) in France as an array of 20 enriched Li$_{2}$MoO$_{4}$ (LMO)...
The MINOS(+) experiment has pioneered the two-detector method used for neutrino oscillation physics widely used today. It collected data from 2005 to 2016 using two tracking iron scintillator calorimeters, a Near detector close to the NuMI neutrino beam source at Fermilab, and a Far detector 735km away, deep underground in the Soudan Mine in Minnesota. An improved analysis of the full beam...
The strength of multi-messenger astronomy allows to deeply investigate the Universe by combining observations with diverse messengers, such as photons, gravitational waves, high-energy charged particles and neutrinos. The chance of detecting new astrophysical sources is increased by a coincident detection, which motivates several observatories to send external alerts and perform...
The separate observation of Cherenkov and scintillation light in liquid scintillation media and thus the extraction of a directional signal and excellent energy and vertex resolution holds great potential in current R&D projects for large scale neutrino detectors like JUNO or Theia. This method offers promising prospects in background suppression methodologies. In particular, the ability to...
We searched for 10-1,000 GeV neutrinos from 2,268 gamma-ray bursts of IceCube-DeepCore data collected between April 2012, and May 2020. We have also conducted the same search for the "brightest of all time" (BOAT) GRB 221009A. We find no evidence of neutrino emission from these GRBs. We present model-independent limits on neutrino emission from these GRBs for various time scales that overlap...
The ANTARES neutrino telescope took data from 2007 to 2022, collecting a high-purity sample of high-energy neutrinos. This sample can be used to search for a diffuse flux of cosmic neutrinos, emerging at the highest energies above the atmospheric backgrounds. A mild excess of cosmic neutrinos has been observed in the ANTARES dataset covering the first 11 years of data taking. In this...
IceCube has made significant progress in identifying astrophysical sources of high-energy neutrinos. However, the majority of the majority of the astrophysical flux remains unexplained, prompting further investigation. To improve our understanding of this flux and its sources, it is important to investigate the presence of a component at lower neutrino energies. To this end, we propose a study...
The KM3NeT experiment is a next-generation neutrino telescope, consisting of the ORCA and ARCA detectors, organised as 3D arrays of light sensors, and immersed in the depths of the Mediterranean Sea. Identical in their design but differing by scale, ORCA aims at detecting neutrinos in the GeV-TeV range, while ARCA will focus on higher energies in the TeV-PeV range. Both detectors can...
The measurement of the unexpectedly high value of the third neutrino mixing angle, $\theta_{13}$, opened the possibility of measuring the Dirac leptonic CP violating angle, $\delta_{CP}$ , using intense neutrino beams. The European Spallation Source neutrino Super Beam (ESS$\nu$SB) is a long-baseline neutrino project that aims in measuring CPV in the leptonic sector at the second of the...
The high-energy neutrino telescope ANTARES was a $0.01 $~km$^3$ volume detector located in the Mediterranean Sea. It operated from 2007 until the beginning of 2022, accumulating more than 15 years of data. The ANTARES neutrino telescope main goal was to identify neutrinos from astrophysical sources particularly those of Galactic origin, using its sensitivity to neutrino coming from the...
The NEXT experiment aims at the sensitive search of the neutrinoless double beta decay ($\beta\beta0\nu$) in $^{136}$Xe, using high-pressure gas electroluminescent time projection chambers. After the successful operation of the NEXT-White detector, which performed the first searches of the double beta decay with the novel NEXT technology using a limited amount of Xe ($\sim$5 kg), the...
Multiple experiments are utilizing the polar icecaps to detect ultra-high energy neutrinos via radio emission. They employ antennas embedded to depths of up to 200 metres. This places them within the firn layer, where the density and hence refractive index increase with depth. Glaciological models demonstrate that the firn density varies with time over a seasonal timescale. The resulting...
The Pacific-Ocean Neutrino Experiment (P-ONE) is a high energy neutrino telescope under development off the coast of Vancouver Island, Canada. A construction site has been chosen in the Cascadia Basin, a large flat seabed on the Juan de Fuca plate. The P-ONE collaboration previously operated the STRings for Absorption length in Water (STRAW) and STRAW-b pathfinder missions. These instruments...
Neutrino physics has entered into the precision era. The unprecedented accuracy in the experimental measurement necessitates reliable theoretical predictions at the loop level. In order to confront neutrino mass models at high-energy scales with low-energy precision data, we accomplish a complete one-loop matching of canonical seesaw models onto the Standard Model Effective Field Theories and...
IceCube DeepCore, the existing low-energy extension of the IceCube Neutrino Observatory, was designed to lower the neutrino detection energy threshold to the GeV range. A new extension, called the IceCube Upgrade, will consist of seven additional strings installed within the DeepCore fiducial volume. These new strings will host modules with spacings of about 20 m horizontally and 3 m...
The nEXO experiment aims to study neutrinoless double-beta decay, requiring stringent control of radioactive backgrounds. Traditional printed circuit boards (PCBs) used for mounting Silicon Photomultipliers (SiPMs) can introduce unacceptable levels of radioactivity. To overcome this challenge, we have developed a novel Silicon Interposer technology utilizing cutting-edge Through-Silicon Via...
The LEGEND-200 experiment, currently running at LNGS, seeks to measure neutrinoless double beta decay in Ge-76 using a source=detector experimental setup with a discovery potential up over $10^{28}$ years and covering the inverted hierarchy. The sensitivity reach of this experiment is based on an accurate understanding of the expected backgrounds and the expected detector response to a wide...
While IceCube's detection astrophysical neutrinos at energies up to a few PeV has opened a new window to our Universe, much remains to be discovered regarding these neutrinos' origin and nature. In particular, the difficulty differentiating $\nu_{e}$ and $\nu_{𝜏}$ charged-current (CC) events in the energy limits our ability to measure precisely the flavor ratio of this flux. The Tau Air-Shower...
On behalf of the KM3NeT Collaboration
KM3NeT/ARCA is a Cherenkov neutrino telescope currently under construction in the Mediterranean Sea, at 100 km off the Sicilian coast, near Capo Passero, and at about 3500 m depth. On its final configuration, the detector will instrument a cubic kilometer
volume of seawater. At the present moment, 28 detector units have been already deployed. In this...
The Beryllium Electron capture in Superconducting Tunnel junctions (BeEST) experiment searches for the signatures of heavy neutrino mass eigenstates by measuring the recoil energy of the Li-7 daughter nucleus from Be-7 electron capture decay. In Phase-II, BeEST has set leading limits on neutrino mixing to a heavy eigenstate in the 100-850 keV mass range using a single superconducting tunnel...
The Short Baseline Neutrino (SBN) programme has an extensive physics program where one of the key aims is to investigate the existence of light sterile neutrinos. It comprises three LArTPC detectors along the Booster Neutrino Beam (BNB); a primarily-muon-neutrino beam. The near detector of the programme (SBND) will carry the main burden of reducing systematic error for the programme due to its...
The Deep Underground Neutrino Experiment (DUNE) is a next generation neutrino oscillation experiment that aims to provide insight towards the main outstanding questions in neutrino physics like mass hierarchy and investigating the potential existence of CP violation. It will make use of a suite of large liquid argon (LAr) time projection chambers, 1.5 km deep underground and located 1300...
Study of the cosmogenic background in Te-LS [subgroup study]
Hechong Han
The Jiangmen Underground Neutrino Observatory (JUNO) is a world-leading neutrino project, aiming at determining the mass ordering of neutrinos through precise measurements of neutrino oscillations. After the determination of neutrino mass ordering, JUNO Phase II will be used to explore neutrinoless double beta decay...
The presence of a super-light sterile neutrino can lead to a dip in the survival probability of solar neutrinos, and explain the suppression of the upturn in the low energy solar neutrino data. In this work, we systematically study the survival probabilities in the 3+1 framework by taking into account of the non-adiabatic transitions and the coherence effect. We obtain an analytic equation...
This contribution focuses on a small-scale liquid scintillator detector, serving as a test setup for the Jiangmen Underground Neutrino Observatory (JUNO) experiment. JUNO is a next-generation medium baseline neutrino experiment located in China. The experiment has a broad physics program and the main goals are to determine the neutrino mass ordering and measure three oscillation parameters...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a broad physics program centered on the study of neutrinos. While prototypes of various component detectors have already collected data, the 2x2 Demonstrator, a prototype for DUNE’s liquid argon near detector (ND-LAr), will be the first DUNE detector to collect neutrino beam...
Cryogenic particle detectors represent a promising avenue for conducting experiments on neutrinoless double beta decay, as demonstrated by the successful operation and sensitivity of current and previous experiments such as CUORE, CUPID-0 and CUPID-Mo. However, the development of new bolometric technologies for effective background rejection is needed to get a higher sensitivity to the 0𝜈𝛽𝛽...
Neutrinoless double-beta decay (0νββ) plays a crucial role in addressing some of the major outstanding issues in particle physics, including lepton number conservation and the Majorana nature of neutrinos. Over the past few decades, several efforts have sought to increase the sensitivity on the 0νββ process to target the Inverted-Ordering region of the neutrino mass spectrum....
The DUNE (Deep Underground Neutrino Experiment) project is a future long-baseline neutrino oscillation experiment. The primary objectives of DUNE include measuring the neutrino CP-violating phase, establishing the neutrino mass hierarchy, and conducting a broad physics program that encompasses studies of supernovae, low-energy physics, and searches for physics beyond the Standard Model....
The next generation of neutrino experiments promises significant progresses in physics beyond Standard Model with a high discovery potential regarding in particular the matter/antimatter asymmetry and the mass hierarchy. One of the key points will be to use high intensity neutrino superbeam in combination with megaton scale detectors.
In Europe, the ESSnuSB project realized a conceptual...
The ESSnuSB (European Spallation Source neutrino Super Beam) project is a design study for an experiment to measure the CP violation in the leptonic sector by observing neutrino oscillations in the second oscillation maximum. The high intensity neutrino beam will be produced using the ESS (European Spallation Source) proton linear accelerator, which will be the most powerful proton driver in...
In the budding field of multi-messenger astrophysics, neutrino observatories such as IceCube play a crucial role in identifying targets of opportunity with their near 100% up-time and view of the whole sky. IceCube aims to identify sources of astrophysical neutrinos using a cubic kilometer of instrumented ice located at the South Pole. Many candidate neutrino sources, such as blazars, have...
In order to be ready for the era where statistical uncertainty will not be dominant anymore, the T2K collaboration has started the second phase of T2K requiring the Near Detector (ND280) Upgrade with a significant reduction of systematic uncertainties with respect to what is currently available. One of the key sub-detectors of upgraded ND280 is the Super Fine Grained Detector (Super-FGD) which...
KM3NeT is a deep-sea research infrastructure composed of two water-Cherenkov neutrino telescopes under construction in the Mediterranean Sea: ARCA (Italy), designed to identify and study TeV-PeV astrophysical neutrino sources, and ORCA (France), aiming at studying the intrinsic properties of neutrinos in the few-GeV range. Despite their different primary goals, both telescopes can be used to...
The FASER experiment is an experiment at the large hadron collider (LHC) measuring neutrinos and searching long-lived particles.
The proton-proton interactions at LHC produce hadrons in forward regions which decays into neutrinos.
These neutrinos are considered as a TeV neutrino beam source in our experiment.
The main uncertainty in the analysis is the neutrino flux because of...
Within the DUNE next-generation neutrino oscillation experiment, the Near-Detector complex has the main aim of constraining systematic uncertainties, in order to allow precise oscillation measurements. The SAND detector is one of the three components of the Near Detector complex. Its aim is to monitor the neutrino beam from an on-axis position and carry out neutrino cross section measurements...
The SNO+ experiment is now preparing for the deployment of Te within the scintillator using a novel chemical loading technique, thereby enabling a $0\nu\beta\beta$ search using $^{130}\mathrm{Te}$. Numerous underground chemical purification plants have been commissioned to ensure that this technique is carried out with expected purification efficiency, stability, and process performance. This...
While cosmic rays were first discovered over a century ago, the source of the most extreme energy components remains unknown. Next-generation neutrino telescopes with substantially improved sensitivity are required to pinpoint the sources of the diffuse astrophysical neutrino flux detected by IceCube. The TRopIcal DEep-sea Neutrino Telescope (TRIDENT) will instrument ~8km^3 of seawater with...
SuperNEMO is searching for the hypothesised lepton-number-violating neutrinoless double-beta decay (0νββ) process. Our unique NEMO-3-style tracker-calorimeter detector tracks individual particle trajectories and energies. This enables powerful background rejection and detailed studies of Standard Model (2νββ) decay. By studying electron and photon energies and relative trajectories, SuperNEMO...
From indirect observations of the universe, we know that at least 80 % of all matter is made of galactic dark matter. As a minimal extension to the standard model of particle physics, the so-called sterile neutrinos in the keV mass range pose a viable candidate for dark matter. One way to search for these sterile neutrinos in a laboratory-based experiment is via tritium beta decay. A sterile...
The T2K experiment has worked for over a decade using ND280 as its near detector. In recent years, T2K has been upgraded to increase its beam power, upgrade ND280 and install a second near detector: WAGASCI-BabyMIND (WGBM). WGBM is composed of both plastic and water segmented trackers and muon range detectors, including the BabyMIND magnetized detector. WGBM is located beneath ND280, and is...
The identification of cosmic objects emitting high energy neutrinos provides new insights about the Universe and its active sources. Although cosmic neutrinos have been observed by the IceCube Neutrino Observatory, the sources of these neutrinos still remain unknown. The KM3NeT/ARCA detector for Astroparticle Research with Cosmics in the Abyss, is currently being built in the Mediterranean Sea...
The TINY (Two Isotopes for Neutrinoless double beta decaY search) experiment aims to investigate neutrinoless double beta decay (0n2b) using the $^{96}$Zr and $^{150}$Nd isotopes. Both of them possess the crucial advantage of very high transition energy for the 0n2b process, which would allow the experimenters to obtain a higher sensitivity to the effective Majorana mass compared to other...
T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment that has taken data since 2010. After having obtained the first hints of CP violation in the leptonic sector, it has entered a second phase with an upgrade of its accelerator beam line and suite of near detectors. Among the different elements of this upgrade, two High-Angle Time Projection Chambers (HA-TPC) were...
The ICARUS collaboration has employed the 760-ton T600 liquid argon TPC detector in a successful three-year physics run at the underground LNGS laboratory, performing a sensitive search for LSND-like anomalous $\nu_e$ appearance in the CERN Neutrino to Gran Sasso beam, which contributed to the constraints on the allowed neutrino oscillation parameters to a narrow region around 1 eV$^2$. After...
Trinity, an imaging atmospheric Cherenkov telescope (IACT) observatory, is proposed for detecting very high energy (VHE) and ultra-high energy (UHE) cosmic neutrinos.
It is designed to detect Earth-skimming tau-neutrinos, transforming into tauons which emerge in the atmosphere and decay producing air showers. Currently, Trinity is in its Demonstrator phase featuring a 0.75 m² mirror area...
The KATRIN experiment is designed to measure the effective mass of the electron anti-neutrino by studying the high-energy end of the tritium β-decay spectrum. After completing the neutrino mass campaigns, KATRIN plans to search for keV-scale sterile neutrinos. For this purpose, a novel detector system called TRISTAN is under development. The detector will consist of about 1500 Silicon Drift...
The detection of high-energy astrophysical neutrinos by IceCube has opened a new window on our Universe. While IceCube has measured the flux of these neutrinos at energies up to several PeV, much remains to be discovered regarding their origin and nature. Currently, the discovery of point sources of neutrinos is hindered by atmospheric neutrino backgrounds; likewise, astrophysical neutrino...
The Tokai-to-Kamioka (T2K) long-baseline neutrino oscillation experiment entered a new phase with enhanced neutrino beams. J-PARC neutrino beam is produced from decayed pions and kaon created by interaction with proton beams at a graphite target. To provide a higher intensity accompanying the J-PARC main ring accelerator upgrade, the J-PARC Neutrino beamline group upgraded and exchanged...
The Pierre Auger Observatory, originally designed for the detection of ultra-high-energy cosmic rays, has also the capability to detect neutrinos with energies above 100 PeV. The identification, through the special characteristics of highly inclined showers, is efficiently performed for neutrinos of all flavours. This presentation reviews the status of the neutrino search at the Observatory....
The KArlsruhe TRItium Neutrino experiment (KATRIN) is searching for the signature of the neutrino mass in the endpoint region of the tritium beta-decay spectrum. KATRIN combines a high-intensity gaseous molecular tritium source with a high-resolution electrostatic spectrometer with magnetic adiabatic collimation which allowed KATRIN to reach a sub-eV sensitivity to the neutrino mass and to set...
The first proposal of the neutrino idea is about to turn a century old. In this lecture, we recall the fundamental advances that occurred soon after, in the era of modelling the atomic nucleus. We discuss the subsequent modifications and developments of the neutrino concept, which shaped modern thinking and prepared for observational advances. We retrace a journey through history, organised in...
The increasing precision of cosmological observations has opened a new window for studying neutrinos.
After reviewing current cosmological constraints on neutrino properties, I will show the potential of forthcoming large-scale structure data from the ESA Euclid mission to detect the neutrino mass sum and provide insights into the existence of light particles beyond the Standard Model.
In its first year of operation, the Dark Energy Spectroscopic Instrument (DESI) has measured the spectra of more than 6 million extragalactic objects. These spectra enable precision measurements of the large-scale distribution of matter in the Universe. One of the key measurements made by DESI is that of the baryon acoustic oscillation scale, which, in combination with measurements of the...
In this talk I review the meaning of cosmological bounds on two important quantities, the effective number of relativistic species Neff and the sum of neutrino masses, and their relation with fundamental neutrino properties. I discuss several non-standard scenarios where Neff can be significantly altered (much larger or much smaller than 3), and also scenarios which barely change its value....
Following a long history of discoveries, the field of solar neutrinos maintains the dual interest of providing a way to probe the mechanism of the Sun's burning, as well as an intense source of neutrinos to test the standard oscillations paradigm.
This talk focuses on recent results on 8B solar neutrinos from the Super-Kamiokande and SNO+ experiments, and outlines the prospects for new...
There are several unanswered fundamental questions about our planet, particularly concerning the deep Earth, from where we lack direct rock samples. Today, thanks to advances in particle detection techniques, geoneutrinos — antineutrinos emitted during the decays of long-lived radioactive elements inside the Earth — can be detected and used as a unique tool to study our planet. Geoneutrinos...
The interaction of cosmic rays with the atmosphere generates a neutrino flux spanning from 10 MeV to over 10 TeV, traveling through baselines from ~10 km to ~1000 km. This creates an ideal environment for testing neutrino evolution. Atmospheric neutrinos have been crucial in discovering neutrino oscillations and continue to advance our understanding. In this talk, we assess the sensitivity of...
The IceCube Neutrino Observatory is a cubic-kilometre Cherenkov neutrino telescope deep in the glacial ice at the geographic South Pole. Thanks to its low energy extension, DeepCore, the instrument can observe atmospheric neutrinos as low as 5~GeV, going up to hundreds of TeV with
the full array. This wide energy flux comes from all directions in the sky, and is modulated by oscillations...
A new generation of atmospheric neutrino detectors will become operational within the next few years. With instrumented water/ice masses ranging from 0.2 Mtons to several Mtons they will accumulate several 100,000 neutrino events per year. This wealth of data accompanied by improvements of systematic uncertainties will allow to perform competitive precision measurements in the GeV energy range...
MicroBooNE currently possesses the world's largest neutrino-argon scattering data set, with twenty measurements already publicly available and many more ongoing analyses studying a wide variety of interaction processes. This talk provides an overview of MicroBooNE's most recent results on neutrino interactions. These include investigations of multi-differential inclusive channels with and...
The NP06/ENUBET experiment concluded its ERC funded R&D program demonstrating that the monitoring of charged leptons from meson decays in an instrumented decay tunnel can constrain the systematics on the resulting neutrino flux to 1%, opening the way for a cross section measurement with unprecedented precision. The two milestones of this phase, the end-to-end simulation of a site independent...
Future long-baseline neutrino experiments seek unprecedented precision in measuring oscillation parameters. Achieving this requires accurate characterization of incoming neutrino energy, reliant on robust nuclear and cross-section models embedded in event generators. External data plays a crucial role in constructing these models. The distinctive characteristics of electron scattering data...
The recent discoveries of high-energy astrophysical neutrinos and gravitational waves have opened new windows of exploration to the Universe. Neutrinos can escape dense environments from where photons can not reach us and travel undeflected through the Universe. In combination with measurements of electromagnetic radiation, neutrinos can help to solve long-standing problems in astrophysics and...
Neutrino cross-sections are often extracted purely in terms of lepton kinematics. In recent years more detailed analyses have been developed that additionally make use of kinematics in the hadronic system, which has proven very successful. However, even with new detector technologies of unparalleled precision, pattern recognition and reconstruction algorithms still require particle energies...
The China Jinping Underground Laboratory (CJPL) is an excellent location for studying solar, geo- and supernova neutrinos. As an early stage of the Jinping Neutrino Experiment (JNE), we have been studying the performance of a 1-ton liquid prototype neutrino detector at CJPL-I. We aim to improve its electronics system and photomultiplier tubes (PMTs) to explore its potential capabilities...
The Taishan Antineutrino Observatory (TAO) aims to measure the fine structure in the reactor antineutrino spectrum with an unprecedented energy resolution of better than 2% at 1 MeV. Its primary goal is to provide a reference spectrum for JUNO, thereby enhancing its sensitivity for determining neutrino mass ordering. The precise spectrum also serves as a benchmark to verify the nuclear...
Hadron interaction model for light nucleus has an important roll in understanding neutrino reaction in a large neutrino detector. In Super-Kamiokande, neutral current quasi-elastic interaction (NCQE) induced by atmospheric neutrino gives 68-82% uncertainty on search for diffuse supernova neutrino background, which is caused by the uncertainty on interaction model between oxygen and high energy...
In the field of neutrino physics, with its 20 000 ton of organic liquid scintillator, JUNO (Jiangmen Underground Neutrino Observatory) will be the largest detector built of its kind. The JUNO detection medium will be a mixture of linear alkyl benzene (LAB), 2.5 g/L of PPO and 3 mg/L of bis-MSB. The main goal of JUNO is to determine the neutrino mass ordering in six years of data taking at...
KATRIN (KARlsruhe TRItium Neutrino experiment) plans to perform a high-precision differential measurement of the entire tritium β spectrum to search for keV-sterile neutrinos. To sustain the very high rate, KATRIN’s detector will be upgraded with a multi-pixel Silicon Drift Detector (SDD). The new detector response must be accurately tested in laboratory conditions, and therefore an ideal...
In the recent past, substantial effort has been devoted to exploring flavour symmetries to solve the flavour puzzle. However, traditional flavour symmetry models proved to be quite unsatisfactory. In 2017, a new 'bottom-up' approach based on modular invariance was suggested, wherein the Yukawa couplings of the Standard Model become modular forms. Within this framework, we addressed the...
Measurements of the $\beta^-$ spectrum of tritium give the most precise directly measured limits on neutrino mass. The Project 8 collaboration is using Cyclotron Radiation Emission Spectroscopy (CRES), a new experimental technique developed to surmount the systematic and statistical limitations of current-generation direct measurement methods to reach an electron-weighted antineutrino mass...
Neutrino oscillation experiments using neutrino beams achieve high sensitivity to oscillation parameters by restricting the range of L/E values probed to be near a theoretical maximum disappearance probability. However, these experiments are insensitive to the oscillation phenomena predicted across a broad range of L/E values. Atmospheric neutrinos have energies spanning hundreds of MeV to...
The increasingly precise measurements needed to push the frontiers of neutrino physics require the construction of ever larger experiments, leading to ever more complex data to be interpreted. The JUNO next generation detector will reach a mass of 20 ktons and is expected to collect 2 PB/year of raw data to detect over 500.000 antineutrino events in 30 years of data.
The challenge is not...
Though liquid argon time projection chambers (LArTPCs) excel at reconstructing neutrino interactions at ~100s of MeV in energy, their physics reach can be enhanced by extending reconstruction to much lower energies. MicroBooNE has demonstrated reconstruction capabilities for energy depositions at the ~MeV and sub-MeV scale, which manifest as isolated "blips" spanning only a few readout...
Despite the incredible success and resilience of the Standard Model of particle physics, there are a few reasons to believe that it is not the final picture of all physical phenomena. Notable examples include the existence of neutrino mass and the collection of cosmological observations which comprise the case for a dark and widespread matter. While there are many experiments dedicated to...
The Deep Underground Neutrino Experiment (DUNE) is a long baseline neutrino experiment for neutrino science and Beyond the Standard Model physics. The experiment will use in the first phase two far detector (FD) modules, 1300 km away from the beamline, installed 1.5 km deep underground. The FD modules will consist of Liquid Argon Time Projection Chambers (LArTPCs) with 17 kt of liquid argon...
In Super-Kamiokande, a 50-kton water Cherenkov detector, gadolinium (Gd) was loaded at concentrations of 0.01% in 2020 and of 0.03% in 2022, and a new observation phase called SK-Gd was started. The detection efficiency of neutrons is greatly improved to 50% with 0.01%Gd and to 65% with 0.03%Gd because gadolinium has a large cross section for neutron capture and produces high-energy gamma...
To achieve a sensitivity of 40 meV/c$^2$ in neutrino mass measurement, the Project 8 experiment relies on cyclotron radiation emission spectroscopy of beta decay electrons from an atomic tritium source. Due to the radioactive nature of tritium, initial R&D work for source and diagnostic tools development is carried out with a hydrogen beam. Presently, a thermally heated hydrogen atom source,...
The DUNE experiment will have a rich set of physics topics, including neutrino oscillation and Beyond Standard Model (BSM) physics. Of great importance to the latter of these goals in baryon number violation (BNV), especially including proton decay (PDK), neutron-antineutron transformations, and dinucleon decay. All suffer from atmospheric neutrino backgrounds, which at times mimic these rare...
We present three different projects on searches for searches of Heavy Neutral Leptons (also known in the literature as sterile neutrinos, right-handed neutrinos, or simply HNLs) in two different models.
The first project analyzes the sensitivity for parameters in the left-right symmetric model in the form of displaced HNLs in different proposals for lepton colliders: FCC-ee, CEPC, ILC,...
The Jiangmen Underground Neutrino Observatory (JUNO) will be a 20-kiloton liquid scintillator detector, currently under construction in southern China. Equipped with 17,612 20-inch photomultiplier tubes (PMTs) and 25,600 3-inch PMTs, JUNO aims to use its world-leading size, energy resolution and low background levels to achieve its primary physics goal of resolving the fine structure due to...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose
neutrino experiment currently under construction in Jiangmen, southwest China.
Its main detector consists of a acrylic sphere of 35.4m in diameter, filled with
20kt of liquid scintillator. JUNO features a broad physics program, with the
determination of the neutrino mass ordering as the primary goal. However,...
JUNO is an experiment located in southern China that aims to determine neutrino mass ordering and perform precise measurements of neutrino oscillation parameters using reactor neutrinos. The calibration of the JUNO detector is a key step towards achieving these physics goals. In this poster, the calibration system will be introduced, followed by the calibration strategy of JUNO, including the...
Coherent elastic neutrino nucleus scattering (CEvNS) occurs when a neutrino interacts with the nucleus as a whole resulting in a recoil of the nucleus. The interaction requires neutrino energies below 50 MeV as prevalent at the pulsed beam of the Spallation Neutron Source at Oak Ridge National Laboratory. The COHERENT experiment is located there, detecting CEvNS with a multitude of different...
In this study, we conducted a comprehensive characterization and optimization of a cryogenic pure CsI (pCsI) detector. Achieving a notable light yield of 35.2PE/keVee and a world-leading energy resolution of 6.9% at 60keV, we utilized a 2cm cubic crystal coupled with a HAMAMATSU R11065 photomultiplier tube (PMT). Additionally, we measured the scintillation decay time of pCsI, which proved to...
Recent results from neutrino experiments such as MINERvA, T2K, and NOvA have revealed notable disparities between simulated predictions and observed data in neutrino-matter interactions. These inconsistencies underscore the inadequacies of the leading theoretical models coded in the simulations, hence shadowing the full complexity of the interactions. A comprehensive understanding of the...
The NuMI Off-Axis $\nu_e$ Appearance experiment (NOvA) is designed to study neutrinos and their interaction properties with matter. NOvA is a long-baseline neutrino oscillation experiment consisting of the Near Detector at Fermi National Accelerator and Far Detector in Ash River, Minnesota aiming to determine the neutrino mass hierarchy, and constrain the charge-parity violation phase. In...
Neutrino telescopes see events of various morphologies: these are the shapes of the aggregate photon hits recorded by the optical module array, including electron neutrino-induced cascades, muon neutrino-induced tracks, and many more. Among these event morphologies, the double cascade ("double-bang") is a class of particular interest because it might indicate the detection of a tau neutrino....
Separating Cherenkov from Scintillation light precisely and efficiently would allow a broad range of physics, especially in the neutrino field. The classification of Cherenkov and Scintillation photons in neutrino interactions is essential for better energy reconstruction, particle identification, and background separation. This classification can be carried out using traditional methods, and...
Borexino, located at the underground Laboratori Nazionali del Gran Sasso in Italy, was a large liquid scintillator detector designed for real-time detection of low-energy solar neutrinos. During more than ten years of data taking, it has measured all the neutrino fluxes produced in the proton-proton chain, the primary fusion process responsible for 99 % of solar energy, as well as from the...
Pre-supernova (preSN) neutrinos are emitted by massive stars in the hours leading up to their core collapse. The detection of preSN neutrinos may provide insight into the evolution of massive stars and the processes culminating in their core collapse, as well as address open questions about neutrinos such as the mass hierarchy. Additionally it may provide early warnings for nearby supernovae,...
Atmospheric neutrinos and cosmic-ray muons are generated from the showers of secondary particles via the interactions of primary cosmic-ray particles with air nuclei at the top of the atmosphere. The meson, such as pion and kaon, decays into atmospheric neutrino and cosmic-ray muon, reflecting the information of the hadronic interactions depending on their energy. Currently, atmospheric...
The Fluorescence Detector (FD) of the Pierre Auger Observatory has a large exposure for the detection of ultra-high-energy (UHE) upward-going showers (UGS) like the ones reported by ANITA.
Recently, strong limits on UGS were obtained using 14 years of FD data, which are in tension with the observations made by ANITA-I and III.
Furthermore, ANITA-IV has reported new UGS candidates.
Both of...
One of the primary goals of future galaxy and cosmic shear surveys such as the Euclid mission is to study dark energy and modified gravity models beyond LambdaCDM, shedding light on the nature of the late acceleration of the Universe. These observations will also be crucial to measure the absolute neutrino mass scale and constrain the effective number of neutrino species.
Cosmological...
For the operation of precision neutrino experiments, the understanding of neutrino interactions with matter are preconditioned requirements of all detections and measurements of neutrinos. The largest uncertainties in estimating neutrino-nucleus interaction cross sections arise in the incomplete understanding of nuclear effects. In the study of neutrino oscillations and nuclear scattering...
Cryo-PoF project is an R&D funded by the Italian Institute for Nuclear Research (INFN) in Milano-Bicocca (Italy) and it is based on Power Over Fiber (PoF) technology.
PoF technology delivers electrical power by sending laser light through an optical fiber to a photovoltaic power converter, in order to power sensors or electrical devices.
Cryo-PoF is inspired by the needs of the DUNE...
Evidence for the existence of dark matter strongly motivates the efforts to study its unknown properties. Additionally, the origin of high-energy astrophysical neutrinos detected by IceCube remains uncertain. Scotogenic models, in which neutrino mass generation occurs through interactions with the dark sector, are some of the leading theories that explain these two mysteries simultaneously. If...
The Coherent CAPTAIN-Mills (CCM) experiment is a 10 ton liquid argon scintillation and Cherenkov detector at the Los Alamos Neutron Science Center. The detector is located 23m downstream from the Lujan Facility's stopped pion source which will receive 2.25 10^22 POT in the ongoing 3 year run cycle. The short duration 290ns proton pulse and delayed arrival time of spallation neutrons allows CCM...
The Short Baseline Near Detector is a liquid argon time projection chamber (LArTPC) composed of a variety of subsystems which each help collect different data elements. The TPC itself uses a wire-based readout to collect drifted ionization electrons. In conjunction with this charge readout system, there is also a photon detection system (PDS) composed of two methods of scintillation light...
We explore the de-excitation of highly excited $^{11}$B$^*$ by use of the TALYS and GEMINI++ codes, which can deal with the decay of a compound nucleus by a series of sequential binary decays. For a liquid scintillator detector, the residual nucleus $^{11}$B$^*$ can be produced by neutrino interactions with $^{12}$C or proton decays in $^{12}$C. We use both the TALYS and GEMINI++ codes to...
Building upon the LiquidO detection paradigm, the CLOUD detector represents a significant evolution in neutrino detection, offering rich capabilities in capturing both spatial and temporal information of low-energy particle interactions. With a 5-10 ton opaque scintillator inner detector volume, CLOUD is the byproduct of the EIC/UKRI funded AntiMatter-OTech project, whose main objective is to...
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a neutrino detector at the Booster Neutrino Beam (BNB) at Fermilab. It is a gadolinium-doped water Cherenkov detector designed for measuring the neutron multiplicity in neutrino-nucleus interactions, as well as measuring the charged-current cross section of muon neutrinos. In addition, ANNIE has a strong focus on testing new...
The Ka rlsruhe Tr itium N eutrino (KATRIN) experiment aims to determine the mass of the electron antineutrino by precise measurement of the energy spectrum of $\beta$-electrons from tritium decay using a MAC-E-Filter setup. After a total measurement time of 1000 days in 2025, a final sensitivity better than $0.3\,\mathrm{eV/c^2}$ (90 % C.L.) is...
ATLAS, a collider detector, can measure the flux of high-energy supernova neutrinos, which originate in the circumstellar medium from days to months after the explosion. Simulating predicted fluxes, we find at most around 0.1–1 starting events and around 10–100 throughgoing events from a supernova 10 kpc away. Possible Galactic supernovae from Betelgeuse and Eta Carinae are considered as...
The Quantum Technologies for Neutrino Mass (QTNM) is a UK-based neutrino mass measurement experiment which aims to leverage advances in quantum technology to develop a new experimental apparatus to determine the absolute neutrino mass.
Sensitivity to neutrino masses in the 10meV/c^2 regime is well motivated by neutrino oscillation measurements, but is out of reach of the current...
The Pacific Ocean Neutrino Experiment (P-ONE) is a cubic-kilometre scale neutrino telescope to be deployed deep in the northern Pacific Ocean off the coast of British Columbia, Canada. P-ONE aims to observe high-energy neutrinos to identify and gain insights into the physical mechanisms behind their sources across the universe. The detector will be composed of an array of kilometre tall...
It is particularly challenging to discern between these two effects since the Hamiltonian of neutrino oscillation is modified in a similar manner by both Lorentz invariance violation (LIV) and non-standard interaction (NSI) in neutrino propagation. Their sole distinction is that the earth matter effect does not impact LIV, while NSI depends on matter density. Therefore, the theories defining...
The spatial width of neutrino wave packets produced by radioactive sources is a debated topic. It has been shown that a sufficiently small neutrino width would have detectable effects for Standard Model neutrinos in JUNO and improve eV-scale sterile neutrino model fits to current data. Predictions for the neutrino width from radioactive sources vary by several orders of magnitude, depending...
Knowing the evolution of our Galaxy is a difficult task. The finiteness of the speed of light can help us on cosmological scales, but it is not helpful if we want to investigate shorter distances. Some information can be extrapolated by analyzing concentrations of radionuclides in layers of material inside the Crust, but this could give us hints just on the evolution of the Solar System and...
The Jiangmen Underground Neutrino Observatory (JUNO) is a large-scale liquid scintillator detector under construction for neutrino detection. The detector will be situated in a laboratory ~700 meters underground. As its primary physics goals, neutrino mass ordering and precision oscillation parameter measurements require stringent systematic control of its measured reactor neutrino energy...
DUNE (Deep Underground Neutrino Experiment) is a long-baseline neutrino experiment that will precisely measure neutrino oscillation parameters, observe astrophysical neutrinos, and search for processes beyond the standard model (such as nucleon decays, heavy neutral leptons, and accelerator-produced dark matter). DUNE will build four Liquid Argon Time Projection Chamber detectors (LAr-TPC)...
In the pursuit of precise neutrino event simulation, the ICARUS experiment within the Short-Baseline Neutrino (SBN) program at Fermilab uses an overlay technique to closely align simulations with experimental data. This technique consists of taking signals from data from each of the each of the three subsystems (TPC, PMT, CRT) and overlaying a simulated neutrino interaction onto the event. The...
The CUPID experiment has embarked on a groundbreaking journey in the search for neutrinoless double beta decay (0$\nu\beta\beta$), leveraging innovative detector technologies to push the boundaries of sensitivity.
Preliminary measurements were conducted using the CUPID BDPT (CUPID
Bolometric Detector Prototype Tower), the inaugural prototype tower designed to evaluate the novel detector...
Since the beginning of data taking, the Super-Kamiokande (SK) experiment has been conducting ground-breaking studies of solar neutrinos. All measurements to date, including those from SNO and KamLAND, are consistent with solar neutrino flavor change due to matter enhanced neutrino oscillations. But we are not yet done with solar neutrinos! Two key phenomena are yet to be observed with high...
In the study of reactor and geo antineutrinos, tagging of the inverse beta decay (IBD) positron-neutron coincidence signature allows for the elimination of most backgrounds. In many detectors, the primary remaining background is caused by $\alpha$ captures on 13C — so called ($\alpha$, n) events — which release a neutron and closely mimic the IBD's signature. The most common ($\alpha$, n)...
We explore how neutrino quantum decoherence could affect the accuracy of standard neutrino oscillation parameter measurements in the DUNE and T2HK experiments. Our analysis reveals that the measurements of $\delta_\text{CP}$, $\sin^2\theta_{13}$, and $\sin^2\theta_{23}$ are more significantly impacted in DUNE compared to T2HK. Conversely, DUNE exhibits greater sensitivity to detecting...
The Jiangmen Underground Neutrino observatory (JUNO) will be a versatile 20 kton liquid scintillator detector with a large spectrum of physics objectives. It is currently under construction in China, with its filling set to start in 2024. The primary goal of JUNO is to determine the neutrino mass ordering by detecting the vacuum oscillation pattern of reactor antineutrinos over a baseline of...
The NuWro Monte Carlo generator has been improved by taking into account the results of theoretical calculations for MEC from the work of J.E. Sobczyk, J. Nieves, F. Sanchez [Phys.Rev.C 102 (2020) 024601]. MEC events lead to the ejection of two or three correlated nucleons. These correlations are simulated using latent parameters. Predictions after the FSI from NuWro are compared to...
The PandaX-4T experiment operates a dual-phase liquid xenon time projection chamber that is located in China Jinping Underground Laboratory. Searches for novel electronic recoil signals (NERS) in such type of detector due to solar axions, axion-like particles, dark photons, and neutrinos with an enhanced magnetic moment have attracted increasing attention as they could provide evidence for...
In the realm of physics beyond the Standard Model, Non-Standard Interactions (NSI) in neutrinos have emerged as a significant area of interest. While NSIs of neutrinos are mediated by a vector field ($Z^\prime$), recent research has delved into a novel form of neutrino interaction with matter mediated by light scalar particles, known as Scalar NSI (SNSI). SNSI appears as a Yukawa coupling...
Inorganic crystal scintillators, especially doped alkali-halide scintillators such as NaI[Tl], CsI[Tl] and CsI[Na], play an important role in neutrino experiments. The pioneering achievement of the COHERENT experiment, utilizing CsI[Na] for the initial detection of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS), demonstrated a nuclear recoil detection threshold of approximately 8...
Experimental discoveries in recent decades have provided valuable information on the nature of neutrino masses and mixings and present the first evidence for physics beyond the standard model. Moreover, massive neutrinos are now serving as an ideal tool to help unlock the mysteries of the matter abundance in the Universe.
At the same time the questions related to nature of neutrino masses,...
In this poster we describe in detail the feasibility of detecting $^{8}$B solar neutrino at JUNO with three reaction channels (neutrino-electron elastic scattering, neutrino-13C charged current, and neutral current interactions). A reduced 2 MeV threshold on the recoil electron energy is achievable with optimized background reduction strategies. The advantage of JUNO for charge and neutral...
JUNO (Jiangmen Underground Neutrino Observatory) is a multipurpose neutrino physics experiment currently under construction in China. Its central detector consists of an acrylic sphere, filled with 20 kton of organic liquid scintillator, and a stainless steel structure, built to sustain 43212 photomultiplier tubes (PMTs) around the sphere. Thanks to its unique features, such as its huge active...
The PROSPECT experiment, known as the Precision Reactor Oscillation and SPECTrum, aims to examine the spectrum of antineutrinos emitted by the High Flux Isotope Reactor (HFIR) and investigate potential oscillations over short distances. The most recent publication by PROSPECT showcases an improved analysis, enhancing previous findings by incorporating a method called Single Ended Event...
With the CONUS reactor antineutrino experiment, the coherent elastic neutrino nucleus scattering (CEνNS) on germanium nuclei was studied at the nuclear power plant in Brokdorf, Germany. Very low energy thresholds of about 210 eV were achieved in four 1 kg point contact germanium detectors operated inside an optimized shield structure. The most recent results obtained during the final phase of...
Massive and deep underground detectors such as the future Deep Underground Neutrino Experiment (DUNE) will offer a great opportunity to search for rare, beyond-the-Standard-Model (BSM) physics signals including baryon number violating (BNV) processes. One such BNV process is nucleus-bound neutron-antineutron transition, followed by antineutron annihilation on a nearby neutron/proton that...
The T2K experiment was commissioned with the primary task of measuring neutrino oscillation parameters. The near detector site has the purpose of measuring the neutrino beam composition close to the source, as well as constraining the main sources of systematic uncertainty on the oscillation fits such as the interaction cross section. The near detectors are capable of measuring...
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a 26-ton water Cherenkov detector that operates in the path of the Booster Neutrino Beam at Fermilab. ANNIE’s studies of neutrino-nucleus interactions in water-based targets have the potential to reduce systematic uncertainties in future long-baseline neutrino oscillation experiments. At the same time, ANNIE serves as an...
The Ricochet experiment aims at measuring the coherent elastic neutrino-nucleus scattering (CEνNS) of reactor antineutrinos at the Institut Laue-Langevin, ILL (Grenoble, France). Ricochet employs two detector technologies to measure the CEνNS: (1) germanium cryogenic calorimeters with neutron-transmutation-doped thermistors (called Cryocube); (2) cryogenic calorimeters with a superconducting...
Neutrino telescopes present a novel opportunity to search for a coupling between Heavy Neutral Leptons (HNLs) and tau neutrinos via mass mixing. These searches can leverage the tau neutrino flux from the oscillations of atmospheric muon neutrinos as they traverse the Earth. This work presents the first search for HNLs using ten years of data from IceCube’s DeepCore sub-array. These results...
The Jiangmen Underground Neutrino Observatory (JUNO), under construction in southern China, will determine the neutrino mass hierarchy (MH) by observing neutrinos from nuclear reactors at a distance of 53 km. To reach the desired sensitivity (> 3σ) for MH, the radiopurity of the detector materials and especially the liquid scintillator (LS) plays a crucial role. To ensure the purity of the 20...
The ENUBET project recently concluded the R&D for a site independent design of a monitored neutrino beam for high precision cross section measurements, in which the neutrino flux is inferred from the measurement of charged leptons in an instrumented decay tunnel. In this phase three fundamental results were obtained and will be discussed in this talk: 1) a beamline not requiring a horn and...
The Short-Baseline Near Detector (SBND) at Fermilab is a Liquid Argon Time Projection Chamber (LArTPC) experiment designed to capture neutrinos from the Booster Neutrino Beam (BNB). Its proximity to the beam target (110 m) and large size (112 tons) enable the recording of millions of neutrino interactions annually. SBND provides the highest statistics worldwide for neutrino-argon cross-section...
Since their first detection, neutrinos have offered several experimental anomalies, each leading to significant discoveries and broadening our understanding of fundamental interactions. Several such anomalies, however, remain unresolved. Those include the LSND, MiniBooNE, and Gallium anomalies, each of which can independently be interpreted as neutrino oscillations involving the addition of...
Weakly Interacting Massive Particles (WIMPs) are the most suitable particle dark matter candidates. These can be gravitationally captured into massive celestial objects, such as the Sun, where they can accumulate and then self-annihilate into Standard Model particles, also yielding neutrinos. Neutrino telescopes, large arrays of photo-sensors, can search for this indirect signal of the...
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a 26-ton gadolinium-doped water Cherenkov detector situated 100 meters downstream in Fermilab's Booster Neutrino Beam. ANNIE’s main physics goal is to measure the final state neutron multiplicity of neutrino-nucleus interactions. This measurement will improve our understanding of these complex interactions and help reduce the...
Although the standard neutrino oscillation process induced by neutrino mass is well-established, there may be second-order contributions to this phenomenon from physical mechanisms beyond non-zero neutrino masses that could modify the standard framework. In this study, we systematically evaluate DUNE's capabilities to observe such beyond-standard oscillation (BSO) effects, assessing its...
The Standard Model’s (SM) limitation in explaining neutrino masses and flavor mixing leads to an exploration of frameworks beyond the standard model (BSM). The study of neutrino properties, including oscillations and interactions, can provide clues for improving our overall understanding of nature. Neutrino oscillations, the transition between different neutrino flavors during long-distance...
Neutrino oscillation provides a unique window in exploring physics beyond the standard model (BSM). One such scenario is quantum decoherence in neutrino oscillation which tends to destroy the interference pattern of neutrinos reaching the far detector from the source. In this poster, I will present the study of the decoherence in neutrino oscillation in the context of the ESSnuSB experiment....
It is well known that the presence of Earth matter affects the neutrino oscillations through the charged and neutral current (NC) interactions, facilitated by W and Z bosons, respectively. In order to explore beyond Standard Model NC interactions, an additional $Z^\prime$ gauge boson can serve as a mediator for the interactions between matter and neutrinos. In our work, we examine light...
The Short-Baseline Neutrino program in Fermilab aims to resolve the nature of the low-energy excess events observed in LSND and MiniBooNE, and analyze with unprecedented precision neutrino interactions with argon. These studies require reliable estimate of neutrino cross sections, in particular for charged current quasielastic scattering (CCQE). In arxiv:2312.13369 (to be published in Phys....
The PROSPECT, STEREO, and Daya Bay experiments have provided world-leading results regarding the detection of reactor-produced antineutrinos. PROSPECT and STEREO have made short-baseline (~10m) measurements of antineutrinos from highly enriched uranium (HEU) research reactors where over 99% of the antineutrino flux comes from $^{235}$U. The Daya Bay experiment has studied antineutrino emission...
Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment located in southern China. The primary goal of JUNO is to determine the neutrino mass ordering and measure several neutrino oscillation parameters to sub-percent precision by measuring the oscillated reactor antineutrino spectrum at $\sim52.5$ km from eight nuclear reactors. Selection of the reactor IBD...
The Jiangmen Underground Neutrino Observatory (JUNO), currently under construction in China, will be a multi-kton liquid scintillator detector with a unique potential to perform a real-time measurement of solar neutrinos well below the few MeV threshold typical of Water Cherenkov detectors. JUNO’s large target mass and excellent energy resolution are prerequisites for reaching unprecedented...
The KATRIN experiment aims to measure the neutrino mass by precision spectroscopy of tritium β-decay. Recently, KATRIN has improved the upper bound on the effective electron-neutrino mass to 0.8 eV/c² at 90% confidence level [1] and is continuing to take data for a target sensitivity of better than 0.3 eV/c².
In addition to a non-zero neutrino mass, there are other tensions in the neutrino...
Super-Kamiokande (SK), a 50 kton water Cherenkov detector in Japan, is observing neutrinos from various natural sources. SK studies the effects of both the solar and terrestrial matter density on neutrino oscillations: a distortion of the solar neutrino energy spectrum would be caused by the edge of the Mikheyev-Smirnov-Wolfenstein resonance in the solar core, and terrestrial matter effects...
The Japanese Spallation Neutron Source (JSNS) at J-PARC can provide an intense source of light new particles. We study the sensitivity of existing neutrino detectors to the decay in flight of light scalars, axion-like-particles, and heavy neutral leptons produced in pion and kaon decay at JSNS. We consider the near detector of the T2K experiment, ND280, where the fast, magnetized, gaseous...
The Jiangmen Underground Neutrino Observation (JUNO), located at Southern China, is a multi-purpose neutrino experiment that consist of a 20 kton liquid scintillator detector. The primary goal of the experiment is to measure the neutrino mass ordering (NMO) and measure the relevant oscillation parameters to a high precision. Atmospheric neutrinos are sensitive to NMO via matter effects and can...
Super-Kamiokande has observed $^8$B solar neutrino elastic scattering on electrons with recoil electrons at kinetic energies as low as 3.49 MeV to study neutrino flavor conversion within the sun. At SK-observable energies, these conversions are dominated by the Mikheyev–Smirnov–Wolfenstein effect. An upturn in the electron survival probability in which vacuum neutrino oscillations become...
China JinPing Underground Laboratory (CJPL) is an underground laboratory with 2800 meters rock overburden and is ideal to carry out experiment for rare-event searches. Cosmic muons and muon-induced neutrons present an irreducible background to both solar neutrino and neutrinoless double beta decay experiment at CJPL. A precise measurement of the cosmic-ray background of CJPL would play an...
The KM3NeT/ORCA detector (Oscillation Research with Cosmics in the Abyss), currently under construction, is deployed at 2450m depth in the Mediterranean Sea, near Toulon, France. Its primary scientific goal is to determine the Neutrino Mass Ordering. ORCA is an array of Digital Optical Modules, spheres that host 31 photomultiplier tubes, tied together in vertical structures (the Detection...
Electron-neutrino charged-current interactions on iodine have been proposed for solar and supernova neutrino detection, owing to the large predicted cross section. Using a 185-kg NaI[Tl] array, COHERENT has measured the inclusive electron-neutrino charged-current cross section on ${}^{127}$I with pion decay-at-rest neutrinos produced by the Spallation Neutron Source at Oak Ridge National...
Measurements of electron neutrino charged-current interactions on Argon from 10-50 MeV are few but are important for future experiments and theoretical modeling of nuclei. Knowledge of the cross section at these energies will be critical in the event that the upcoming Deep Underground Neutrino Experiment (DUNE) observes neutrinos from a galactic supernova. Uncertainties on the cross sections...
Neutrino-Induced Neutrinos (NINs) are neutrons produced as a result of the interaction between neutrinos and nuclei. NINs are central to supernova early warning systems such as the Helium and Lead Observatory (HALO) and also appear as background in accelerator-based neutrino experiments. The occurrence of NINs affects the measurement of neutrino interaction rate (cross-section). In $2015$, the...
The SNO+ experiment is a large multi-purpose neutrino detector, currently filled with liquid scintillator. For the first time in a single experiment, SNO+ is able to measure the neutrino oscillation parameters θ₁₂ and Δm²₂₁ simultaneously through both reactor anti-neutrinos and Boron-8 solar neutrinos. This poster demonstrates the latter approach, with an analysis of scintillator phase data. A...
Current and future accelerator neutrino oscillation experiments need neutrino interaction models with smaller systematic uncertainties to resolve much of delta CP phase space. Final state interactions (FSI) and scattering off of correlated nuclei (2p2h) are poorly understood processes that currently contribute large uncertainties to leading models. These processes have proven difficult to...
With its unprecedented sensitivity to MeV-scale neutrinos, the Jiangmen Underground Neutrino Observatory (JUNO) will play an essential role in the emerging field of multi-messenger astronomy, especially in capturing next galactic core-collapse supernova (CCSN). Two real-time monitoring systems have been designed to detect the forecasted burst of neutrinos from a CCSN in JUNO. Here we present a...
NOvA is a long-baseline accelerator-based internationally collaborated neutrino experiment based in the USA. NOvA uses an intense neutrino beam produced at Fermilab’s accelerator complex to make physics measurements of neutrino oscillations, neutrino cross sections, and other high quality neutrino analyses. For its physics goals, NOvA uses two functionally-identical detectors. The Near...
The DARWIN project aims to build and operate a next-generation observatory for dark matter and neutrino physics. The detector will feature a dual-phase time projection chamber with an active target of 40$\,$tonnes of liquid xenon (LXe), built underground with carefully selected materials. Its low-energy threshold and ultra-low background will enable the search for a wide range of neutrino...
Systematic studies of core-collapse supernovae (CCSNe) have been conducted based on hundreds of one-dimensional artificial models (O'Connor & Ott 2011,2013; Ugliano et al. 2013, Ertl et al. 2015) and two-dimensional self-consistent simulations (Nakamura et al. 2015;2019, Burrows & Vartanyan 2020). We have performed three-dimensional magnetohydrodynamic simulations for the core-collapse of 16...
The Jiangmen Underground Neutrino Observatory (JUNO) will be a 20-kiloton liquid scintillator detector, currently under construction in southern China. JUNO will be equipped with 17,612 20-inch photomultiplier tubes (PMTs) and 25,600 3-inch PMTs and aims to determine the neutrino mass ordering as the primary physics target by precisely measuring the energy spectrum of the reactor electron...
Detecting neutrons from the interactions of MeV to GeV neutrinos promises to uncover previously hidden details of what is happening at the heart of the interaction and help to reconstruct precise (anti)neutrino kinematics. The newly upgraded near detector, close to the muon (anti)neutrino beam for the T2K experiment, includes a novel super fine-grained detector (Super-FGD), a 3D tracker...
The goal of CONNIE (COherent Neutrino-Nucleus Interaction Experiment) is to detect reactor antineutrinos via the CE$\nu$NS (Coherent Elastic Neutrino Nucleus Scattering) channel using fully depleted high-resistivity CCDs (charge coupled devices) installed at about 30 meters from the core of the 3.8 GW Angra-2 nuclear reactor in Rio de Janeiro, Brazil. In 2021, The detector was upgraded with...
In the ECHo experiment large arrays of low temperature metallic magnetic calorimeters (MMCs) enclosing Ho-163 are used for the high resolution measurement of the electron capture spectrum. The goal of the experiment is to achieve the sensitivity to detect an extremely small spectral shape distortion in the end point region due to a finite neutrino mass.
Thanks to the modular construction of...
The ICARUS T600 Liquid Argon Time Projection Chamber (LArTPC) detector is the far detector of the Short Baseline Neutrino (SBN) Program located at Fermilab National Laboratory (FNAL). The data collection for ICARUS began in May 2021, utilizing neutrinos from the Booster Neutrino Beam (BNB) and the Neutrinos at the Main Injector off-axis beam (NuMI). The SBN Program has been designed to...
Xenon-based detectors are powerful tools in the search for low energy signatures of new physics. Here we report experimental results that open up a new channel for rare event searches in these detectors: MeV-scale charged-current interactions on 136Xe nuclei. These interactions will populate low-lying 1+ excited states in 136Cs, which then relax to the ground state through the emission of...
No method for efficient detection of electron neutrino in MeV energy region has been established so far although there are interesting physics channels in the low energy such as measurement of supernova $\nu_e$, $\nu_e$ oscillation and $\nu_e$-nucleus interactions. Lead (Pb) has a novel potential as $\nu_e$ target. $\nu_e$ is expected to interact with Pb nucleus and produce an electron and...
The Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) is a satellite experiment of the Jiangmen Underground Neutrino Observatory (JUNO). The experiment consists of a ton-level liquid scintillator detector placed at 44 m from a 4.6 GWth reactor core of the Taishan Nuclear Power Plant. The main goal is to measure the reactor antineutrino spectrum with sub-percent energy resolution,...
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kilo-tons liquid scintillator detector currently under construction in southern China. The primary goal of the experiment is to determine the mass hierarchy of the neutrino by analysing the energy spectrum shape of reactor antineutrino. That is why, the detector’s energy response is of paramount importance. In the JUNO detector, the...
DUNE is a long-baseline neutrino experiment that will use the new LBNF (Long-Baseline Neutrino Facility) neutrino beam sampled at the Near Detector complex (DUNE ND), 574 m downstream of the production target, and at the Far Detector complex, 1300 km away at the SURF laboratory at a depth of about 1.5 km. To assess the future performance of the DUNE Far Detector, full-scale prototypes of the...
The NOvA (NuMI Off-Axis electron neutrino Appearance) experiment is a long-baseline neutrino oscillation experiment composed of two functionally identical detectors, a 300 ton Near Detector, and a 14 kton Far Detector separated by 809 km and placed 14 mrad off the axis of the NuMI neutrino beam created at Fermilab. This configuration enables NOvA's rich neutrino physics program, which includes...
Spurred by a variety of neutrino oscillation anomalies, a strong interest has arisen in recent years in non-standard neutrino interactions (both active and sterile). The effects of such interactions have been also investigated within extensions of the standard cosmological model.
The work focuses on the possibility to characterize and constrain the parameter space of the so-called Majoron...
The Project 8 experiment aims to probe the absolute neutrino mass through direct kinematic measurements of the tritium beta decay spectrum using cyclotron radiation emission spectroscopy (CRES). Non-uniformity of the magnetic field in the physics volume is expected to dominate the achievable energy resolution, and thus sensitivity.
CRES requires precise knowledge of the field through which...
The Deep Underground Neutrino Experiment (DUNE) international project, currently under construction, will enable an exciting program for precision neutrino physics and beyond. Two multidetector facilities will be exposed to the world's most intense neutrino beam: the Near Detector complex will measure the beam flux and composition 575 m downstream of the production target, at Fermilab; and the...
The IceCube Neutrino Observatory consists of one cubic kilometer of Antarctic ice at the South Pole, which is instrumented with optical modules to detect Cherenkov light produced during neutrino interactions. The central lower region of the detector, known as DeepCore, has closely spaced optical modules that allow it to detect neutrinos with energies as low as a few GeV. We use the GeV-energy...
The ability of future accelerator-based neutrino experiments to set unprecedented constraints on all oscillation parameters, requires a solid understanding of neutrino cross sections. This is true especially for the most often selected signal of final state lepton and a single proton, and its background which could consist of processes with more than one final state proton. However, neutrinos...
SoLAr is a future MeV-scale neutrino experiment planning for a near-term future detector at Boulby Underground Laboratory in the United Kingdom. It uses a shared anode plane with combined pixelated charge and light readout planned to enable tracking and calorimetric reconstruction using combined light and charge data, providing greater sensitivities to solar neutrinos and other MeV-scale...
The unknown absolute scale of the neutrino mass remains an outstanding problem in astro and particle physics. Project 8 experiment seeks to measure the effective $anti-$neutrino mass $m_{\beta}$ with a sensitivity of $40~\text{meV}/c^2$ with the tritium endpoint method. To achieve this goal, Project 8 has pioneered the Cyclotron Radiation Emission Spectroscopy (CRES) technique. Adopting a...
The Precision Reactor Oscillation and SPECTrum (PROSPECT) experiment is a short-baseline reactor experiment with the goal of measuring the antineutrino spectrum from the High Flux Isotope Reactor (HFIR). It searches for potential short-baseline oscillations and the existence of sterile neutrinos. PROSPECT has already set new limits on the existence of eV-scale sterile neutrinos while achieving...
The Jiangmen Underground Neutrino Observatory (JUNO) is located 650 meters underground in southern China. The central detector of JUNO, featuring 20 kton of liquid scintillator and 78% photo-sensitive coverage, is designed to achieve an energy resolution better than 3% at 1 MeV. The physics goals of JUNO include determining the neutrino mass ordering and precisely measuring the neutrino...
JUNO (Jiangmen Underground Neutrino Observatory) is a 20.000-ton multipurpose underground liquid scintillator detector, which is designed to study the fundamental neutrino parameters. The central detector of JUNO will be filled with a liquid scintillator (LS) mixture, composed of LAB as solvent, 2.5 g/l PPO as fluor and 3 mg/l bis-MSB as wavelength shifter. Given the huge mass, the high...
We derive quantum kinetic equations for mixing neutrinos including consistent forward scattering terms and collision integrals for coherent neutrino states. Our derivation is valid for arbitrary neutrino masses and kinematics, it includes the local coherence effects, and a comprehensive set of generalized Feynman rules for computing the coherent collision integrals. We discuss the importance...
The neutrino mass is one of the still-to-be-solved puzzles of particle physics. Measuring the neutrino mass is possible by performing precision spectroscopy of the tritium beta-decay spectrum at its endpoint. Until now, experiments following this approach use molecular tritium and are therefore limited by the broadening of the molecular final state distribution.
For future experiments...
MicroBooNE is a Liquid Argon Time Projection Chamber, able to image neutrino interactions with excellent spatial and timing resolution, enabling the identification of complex final states resulting from neutrino-nucleus interactions. This poster will provide an overview of measurements for rare final states, such as $\Lambda$ and η production. These processes both provide unique sensitivities...
Neutrino experiments require high-speed data processing to extract valuable insights from large data sets. This poster presents an advanced real-time charge reconstruction algorithm for neutrino physics applications at the Jiangmen Underground Neutrino Observatory (JUNO), implemented on a field-programmable gate array (FPGA) platform.
The algorithm is designed to exploit the processing...
In neutrino oscillation experiments, uncertainty in the reaction model between neutrinos and atomic nuclei in the low energy region of Sub-Multi GeV is one of the causes of systematic errors. The NINJA experiment aims to precisely measure the reaction between neutrinos and atomic nuclei in this low energy region.
The NINJA experiment measures neutrino reactions using a nuclear emulsion plate...
The Short Baseline Near Detector (SBND), a 112-ton liquid argon time projection chamber (LArTPC), is the near detector of the Short Baseline Neutrino Program at Fermilab. Due to its large mass and proximity to the Booster Neutrino Beam target, SBND will see a record-breaking number of neutrino interactions on liquid argon enabling a rich program of neutrino cross-section measurements. Of...
The Cosmic Neutrino Background (CNB) encodes a wealth of information, but has not yet been observed directly. To determine the prospects of detection and to study its information content, we reconstruct the phase-space distribution of local relic neutrinos from the three-dimensional distribution of matter within 200 Mpc/h of the Milky Way. Our analysis relies on constrained realization...
The Deep Underground Neutrino Experiment (DUNE) is the next generation neutrino experiment currently under construction. It consists of a broadband neutrino beam at Fermilab, a high precision near detector, and the largest liquid argon time projection chamber far detector ever designed at the Sanford Underground Research Facility (SURF).
The Region of Interest (ROI) filter is designed for...
The control of nuclear effects is crucial to guarantee the success of future neutrino oscillation experiments (HyperK
and DUNE) in the search of CP violation in the leptonic sector. In particular, recently published semi-inclusive measurements are very sensitive to the details of nuclear modeling.
Among the various processes contributing to the cross section, two-particle--two-hole...
Recent advances in the development of cryogenic particle detectors, such as the magnetic microcalorimeter (MMC), allow the fabrication of sensor arrays with an increasing number of pixels, enabling measurements with unprecedented energy resolution. Since these detectors must be operated at the lowest temperatures, the readout of large detector arrays is still quite challenging due to strict...
In the standard interaction framework, directly measuring absolute neutrino masses through neutrino oscillations isn't feasible since oscillations rely solely on mass-squared differences. However, the introduction of scalar non-standard interactions can incorporate additional terms in the oscillation Hamiltonian, directly impacting the neutrino mass matrix. This characteristic renders scalar...
While primarily searching for neutrinoless double-beta decay in $^{130}$Te, CUORE demonstrates that bolometric detectors have reached sufficient size and scale to track through-going particles. Novel track-reconstruction tools and analysis techniques have been developed to study track-like events in the detector, including exotic signatures such as those induced by hypothetical...
Lorentz invariance (LI) is a fundamental symmetry in physics that ensures that the same equations can be used to describe experiments in any inertial laboratory. Many proposed quantum gravity theories predict a violation of this symmetry, which is referred to as Lorentz invariance violation (LIV). The "Standard-Model extension" parametrizes physically valid ways of including LIV into the...
Super-Kamiokande (SK) is known as the most sensitive detector to the supernova neutrinos originating in our galaxy.
SK also has a sensitivity to neutrinos from the extra-galactic supernova within 10 Mpc from Earth, called a “mini-burst”, which is expected to occur once every few years. Recently, SN2023ixf, one of the mini-bursts, is famous as the closest supernova in the last few years....
Grand Unified Theories explain the unification of the electromagnetic, weak, and strong forces and most of them predict protons to decay into lighter particles. The latest result of the proton decay search for $p\rightarrow e^+/\mu^+ +\eta$ channels in Super-Kamiokande will be discussed in this presentation. The cross sections of $\eta$ nuclear effect are improved compared to previous work,...
The XENONnT experiment has been built at the Laboratori Nazionali del Gran Sasso (LNGS) in order to continue the search for dark matter in the form of weakly interactive massive particles (WIMPs). Thanks to its low energy threshold and unprecedentedly low background level, the physics reach of XENONnT has expanded from the direct detection of WIMPs to a variety of rare event searches such as...
Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) is an interaction well predicted by the Standard Model. Its large cross-section allows to study neutrinos with relatively small detectors. Precision measurement of the CEvNS cross-section is a way to study neutrino properties and search for new physics beyond the Standard Model. The NUCLEUS experiment aims to detect and characterize CEvNS...
Secondary mesons are produced in the stratosphere when primary cosmic rays collide with atmospheric molecules. Muons from secondary meson (mainly pions and kaons) decays can be detected in underground laboratories. As the temperature increases, the atmospheric density decreases, resulting in a reduced probability of meson interaction with atmosphere molecules and an increased probability of...
LiquidO is an innovative particle detection paradigm using opaque liquid
scintillators. The emitted light is confined near its creation point and captured by an array of wavelength-shifting fibers. This enables high-resolution imaging for particle identification down to the MeV scale, giving LiquidO the potential for various practical applications in particle physics.
After the successful...
Modeling of rare neutrino processes often relies on either simple approximations or expensive detector simulations. The former is often not sufficient for interactions with complex morphologies, while the latter is too time-intensive for phenomenological studies. We present SIREN (Sampling and Injection for Rare EveNts), a new tool for neutrino phenomenology and experimental searches alike...
The PandaX-4T experiment, employing a two-phase xenon time projection chamber, aims at exploring various physics phenomena, including detecting astrophysical neutrinos and searching for dark matter. It has set a significant constraint on solar B-8 neutrino flux using commissioning data, with an effective exposure of 0.48 tonne-year through neutrino-nucleus coherent scattering. Additionally, it...
Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) poses an irreducible background for direct dark matter search experiments. In this work we discuss the scenario of low-threshold, high-exposure cryogenic solid state experiments optimized for the search of low-mass dark matter. We show that experiments with energy thresholds of $\mathcal{O}$(eV) and exposures of...
We determine the solar neutrino fluxes from the global analysis of the most
up-to-date terrestrial and solar neutrino data including the final results of the three phases
of Borexino. The analysis are performed in the framework of three-neutrino mixing with
and without accounting for the solar luminosity constraint. We discuss the independence
of the results on the input from the Gallium...
The ICARUS experiment, utilizing Liquid Argon Time Projection Chamber (LAr TPC) technology, has been installed at Fermilab in Chicago, Illinois, following its initial operation in Italy and subsequent refurbishment at CERN. ICARUS completed commissioning in June 2022. Currently, the experiment is in the phase of analyzing data from its two runs of physics data acquisition and gearing up for...
The Neutrino Elastic Scattering Observation with NaI(Tl) (NEON) experiment aims to observe coherent elastic neutrino-nucleus scattering (CEvNS) using reactor electron antineutrinos with a 16.5 kg NaI(Tl) detectors. A novel crystal encapsulation technique has enhanced light collection efficiency, resulting in a yield of 22 to 25 photoelectrons per keV of light. The detection facility of the...
The COHERENT collaboration made the first measurement of coherent elastic neutrino-nucleus scattering (CEvNS) and did so by employing neutrinos produced by the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The uncertainty of the neutrino flux generated from the SNS is on the order of 10% making it one of COHERENT's most dominant systematic uncertainties. To address...
NOvA is a long-baseline accelerator neutrino experiment at Fermilab whose physics goals include precision neutrino oscillation as well as cross-section measurements. We present the status of the measurement of a muon neutrino charged-current cross section with zero mesons in the final state at the NOvA near detector. This measurement is being made with respect to the kinematics of the final...
The Short Baseline Near Detector (SBND), a 112 ton liquid argon time projection chamber (LArTPC), is the near detector of the Short Baseline Neutrino Program at Fermilab. Neutrino events in SBND will produce both ionization electrons and scintillation light, which will be detected at the Anode Wire Planes Plane Assemblies (APAs) and the Photon Detection System (PDS), respectively. Wire-Cell is...
The Jiangmen Underground Neutrino Observatory (JUNO) is a critically important neutrino experiments aimed at determining the mass hierarchy (MH) of neutrinos. It is currently under construction and will be filled with 20k tons of liquid scintillator (LS) to mainly observe the reactor anti-neutrinos from two sets of nuclear reactors located 53 km away. In order to reach the goal of 3$\sigma$...
DUNE will exploit a wide-band neutrino beam and the energy spectrum information at the level of both the 1st and 2nd oscillations maxima in order to achieve its sensitivity to CP violation. This sensitivity is obtained by comparing the energy spectra of oscillated events with neutrinos and antineutrinos.
This work is investigating the neutrino energy reconstruction in DUNE starting from...
Since SN1987A, we know that supernovae (SNs) produce burst of
neutrinos which can be detected several minutes to hours before the
electromagnetic burst. Detecting this neutrino burst would provide
valuable information on the supernova explosion mechanism and allow
to give an early warning of the imminent eletromagnetic burst arrival
to the astronomer community. The Super-Kamiokande...
COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) is an underground cryogenic sodium iodide (NaI) experiment for the direction detection of dark matter. The experimental facility consists of a water Cherenkov muon veto surrounding the dilution refrigerator that holds NaI detector modules. Both the veto and the modules are sensitive to neutrinos given a...
There have been considerable efforts to measure the parameters of the neutrino mixing matrix PMNS (Pontecorvo-Maki-Nakagawa-Sakata). The least known of these parameters is the complex CP-violating phase, $\delta_{\text{CP}}$. Accelerator experiments are the leading candidates to measure it with high significance. Supernova neutrinos, on the other hand, have never been considered to this date,...
Theia is a proposed large-scale neutrino detector that would use both scintillation and Cherenkov light to achieve the lower-energy threshold and finer energy resolution of scintillator detectors, coupled with the direction resolution and particle identification capabilities of water Cherenkov detectors. Such a “hybrid” detector could achieve an extremely broad physics program, including...
Theia is a proposed large-scale neutrino detector designed to discriminate between Cherenkov and scintillation signals in order to enable a rich program of fundamental physics. The baseline design consists of a tank filled with a novel scintillator, such as water-based liquid scintillator (WbLS), along with fast, spectrally-sensitive photon detection, in order to leverage both the direction...
Coherent elastic neutrino nucleus scattering (CEvNS) was proposed 50 years ago within the standard model. The cross section of this process depends quadratically on the number of neutrons in nuclei and prevails over all other cross sections of known neutrino interactions in the allowed energy region, below approximately 50 MeV for heavy nuclei. At the same time, the recoil energy for this...
The CONUS+ experiment is a new project which aims to detect coherent elastic neutrino-nucleus scattering (CEνNS) of reactor antineutrinos on germanium nuclei in the fully coherent regime, continuing in this way the CONUS physics program. The CEνNS signature will possibly be measured with the four 1 kg point-contact high-purity germanium (HPGe) detectors of the former experiment, which have...
Photomultiplier tubes (PMT) are widely deployed at neutrino experiments for photon counting. When multiple photons hit a PMT consecutively, their photo-electron (PE) pulses pile up to hinder the precise measurements of the count and timings. We introduce Fast Stochastic Matching Pursuit (FSMP) to analyze the PMT signal waveforms into individual PEs with the strategy of reversible-jump...
Measuring the absolute mass of neutrinos remains a significant challenge in particle physics and astrophysics. The only theory-unrelated method to assess its value is through direct measurements, which involve a kinematic analysis of electrons emitted in beta decays. The experiments aiming to perform such a measurement fall into two categories: spectrometers and calorimeters. Spectrometers...
Over 50 years ago, it was predicted that it is possible to split an atom with a neutrino interaction, but there has never been a concerted experimental effort to confirm this phenomenon. The existence of this process would inform nuclear astrophysics, nuclear reactor monitoring and give a vantage into a process that bridges both the weak and strong fundamental interactions. This would add the...
The Mobile Antineutrino Demonstrator project aims to construct a realistically deployable antineutrino detection system that can operate at essentially any reactor facility with no infrastructure support beyond electrical power. Through engagement with potential end-users and host facilities, this effort will advance the technical readiness of neutrino-based reactor monitoring concepts by...
The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a gadolinium-doped water Cherenkov neutrino detector located along the Booster Neutrino Beam (BNB) at the Fermi National Accelerator Laboratory (FNAL). Its primary physics goals are the measurement of the neutrino-nucleus interaction cross section in water, and the measurement of final-state neutron multiplicity from these...
A core-collapse Supernova in our own galaxy would be close enough to be seen with neutrinos in many of the world's neutrino and dark matter detectors. Those neutrinos exit the star promptly, while the electromagnetic fireworks appear ~hours later after the explosion's shock reaches the star's surface. An automated alert network allows a coincidence between detectors to be issued...
While the unitarity of the neutrino mixing matrix is postulated in the standard three-flavour paradigm, it can be verified experimentally through neutrino oscillation measurements. In this study, we combine recent public data from the atmospheric and reactor neutrino experiments — including IceCube-DeepCore, Daya Bay, and KamLAND — and place model-independent constraints on the individual...
The Jiangmen Underground Neutrino Observatory (JUNO) is a large-scale liquid scintillator detector constructed for neutrino detection. The detector will be situated in a laboratory ~700 meters underground to reduce the impact of cosmic muon-induced background. The central detector consists of a 20 kton liquid scintillator target enclosed within an acrylic sphere, surrounded by 17,612 20-inch...
SNO+ is a multi-purpose neutrino detector located 2 km underground at SNOLAB, Canada. The experiment is in operation with 780 tonnes of liquid scintillator as its target mass. The high light yield, low background levels, and planned long-term operation make SNO+ suitable for precision measurements of high energy solar neutrinos (E > 5 MeV) and provide the opportunity to detect low energy solar...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose observatory currently under construction in China. JUNO's physics reach will span many areas, amongst which precision neutrino oscillation measurements using reactor neutrinos, solar, atmospheric and geoneutrino related measurements.
In order to reduce the backgrounds from the atmospheric neutrino flux, the JUNO detector...
The extremely weak interaction of neutrinos makes them both challenging to study and excellent cosmological messengers as they can escape the most dense astrophysical objects. As a result, neutrinos can play a crucial role in answering some of the most important questions at both the smallest and largest scales of the universe. The next generation of accelerator-produced high-energy neutrino...
The detection of neutrinos from the next galactic Core Collapse Supernova (CCSN) is a unique opportunity to study its explosion mechanism with profound implications in astrophysics, nuclear physics, and particle physics. The Jiangmen Underground Neutrino Observatory (JUNO), currently under construction in Southern China, is a 20-kiloton liquid scintillator detector equipped with two...
Thanks to their excellent energy resolution, cryogenic microcalorimeters are a particularly suitable detector choice for calorimetric neutrino mass experiments, where the ability of precisely resolving decay spectra is essential. Transition Edge Sensors (TESs) and Magnetic Microcalorimeters (MMCs) are employed in the HOLMES and ECHo experiments, respectively. In order to increase the...
The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to probe the effective electron anti-neutrino mass by measuring the beta-decay spectrum of molecular tritium close to the endpoint region. By the end of 2025, a final sensitivity better than $0.3\,\mathrm{eV}/c^2$ ($90\,\%$ CL) will be anticipated with a total of 1000 days of measurement. For going beyond, i.e. to set up a next-generation...
The upgrade of the T2K magnetised near detector (ND280) is near completion in J-PARC. After detecting the first neutrinos in Fall 2023, ND280 is collecting new data in 2024 with a beam intensity above 700 kW. The new active target, the Super Fine-Grained Detector (SFGD) is made up of about 2 million 1 $\textrm{cm}^3$ scintillation cubes, thereby offering excellent timing resolution and...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment currently under construction in southern China.
The detector consists of a 35.4 m diameter acrylic sphere filled with 20 000 t of ultra-pure liquid scintillator and makes JUNO the largest liquid scintillator-based, underground neutrino observatory. The primary goal of JUNO is to determine the neutrino...
The Karlsruhe Tritium Neutrino (KATRIN) Experiment directly measures the neutrino mass-scale with a target sensitivity of 0.3 eV/c^2 by determining the shape change in the beta spectrum near the endpoint. The Rear Wall is used to maintain a homogenous starting potential distribution over the full magnetic flux tube volume in the gaseous tritium source. During operation, tritium is circulated...
The neutrino has a lifetime that is significantly longer than the Age of the Universe, as it can only decay radiatively via loops involving gauge bosons. However, the presence of physics Beyond the Standard Model could induce 'visible' neutrino decay between neutrino mass eigenstates. This decay process could be identified in laboratory experiments as well as from astrophysical or cosmological...
The Large Volume Detector (LVD) at the INFN Gran Sasso National Laboratory, Italy, whose main goal is the detection of neutrino bursts from core-collapse supernovae in the Galaxy, has been taking data since 1992. The updated search for neutrino bursts, including the most recent data up to 2024, is presented. The analysis yielded no evidence of neutrino bursts, imposing a new upper limit to the...
SNO+ is a large liquid scintillator-based experiment located 2km underground at SNOLAB, Sudbury, Canada. It reuses the Sudbury Neutrino Observatory detector, consisting of a 12 m diameter acrylic vessel filled with about 780 tonnes of ultra-pure liquid scintillator. The high overburden and cleanliness procedures give low background rates. Combined with the kiloton scale experiment, it is...
KM3NeT/ORCA is a 7 Mton water-Cherenkov neutrino detector being built by the KM3NeT Collaboration at the bottom of the Mediterranean Sea at a depth of 2450 meters off the coast of Toulon, France.
The main goal of this experiment is to determine the neutrino mass ordering as well as measuring oscillation parameters for the atmospheric neutrino sector.
The ORCA detector has been growing in...
In recent years, neutron multiplicity associated with neutrino-nucleus interactions has become important observable in large neutrino detectors such as Super-Kamiokande, KamLAND, and JUNO. The neutron multiplicity can be measured by detecting gamma rays emitted by neutron capture by taking delayed coincidence. It is expected to improve the results of various physics analyses by using the...
Hot white dwarfs lose energy mainly in the form of neutrinos through plasmon decay from the inner part of the star. BSM physics can have visible contributions to the cooling of these compact objects. The aim of this study is to show how hot white dwarf cooling could be altered by a dark photon from the L_mu - L_tau model and explore these effects from ultra-light to heavy intermediators. This...
The method of indirect detection of dark matter (DM) particles in neutrino telescopes involves the observation of Cherenkov signals left by their annihilation or decay products. An excess of neutrinos produced by these processes is searched in nearby astrophysical targets such as the Galactic Centre or the Sun, where large amounts of DM are believed to accumulate. The KM3NeT infrastructure,...
The SBND (Short Baseline Near Detector) is the near detector of the short baseline neutrino program (SBN) at Fermilab. SBND, is located at 110 m from the neutrino beam and will collect an impressive statistic of neutrino-argon interactions. SBND will also serve as a test bed for new technologies for LAr-TPCs. In particular SBND implements different and complementary solutions for the detection...
Light detection plays a central role in many current and planned neutrino experiments. This field has seen the flowering of many new ideas in the last few years, thanks to the development of new photo-sensors and new detection techniques, based on the use of advanced materials. This talk will review the most innovative and promising approaches to photon detection in neutrino physics in the...
