Invited Talk
JUNO is a neutrino experiment aiming to detect antineutrinos emitted from nuclear reactors and from the inner layers of the Earth, as well as neutrinos from galactic and extragalactic sources. It comprises an active target mass made of 20 kton organic liquid scintillator, monitored by more than 40000 photosensors. JUNO aims to shed light on several open questions in fundamental particle...
The ANTARES neutrino telescope was operational in the Mediterranean Sea from 2006 to 2022. The detector array, consisting of 12 lines with a total of 885 optical modules, was designed to detect high-energy neutrinos covering energies from a few tens of GeV up to the PeV range. Despite the relatively small size of the detector, the results obtained are relevant in the field of neutrino physics...
The IceCube Neutrino Observatory, together with its DeepCore sub-array, detects large amounts of atmospheric neutrinos in the GeV to TeV energy range, enabling measurements of the muon-neutrino disappearance and tau-neutrino appearance channels of neutrino oscillations over a wide range of baselines up to 12000 km. In the energy range of DeepCore between 5 GeV and 150 GeV in particular, these...
The hunt for neutrinos from Gamma-Ray Bursts (GRBs) could also be significant in quantum-gravity research, since they are ideal probes of the microscopic fabric of spacetime. One of the most studied candidate effects of quantum gravity is in-vacuo dispersion, an energy-dependent correction to the speed of ultrarelativistic particles, and in a recent studywe investigated the hypothesis that...
Neutrinoless double-beta decay is a nuclear decay, given as (A,Z) --> (A,Z+2)+2e-, that violates total lepton number conservation by two units. Its observation would have deep consequences in the understanding of our Universe. It would prove that neutrinos have a Majorana component, it would help to understand the origin of the neutrino mass and constrain its absolute mass and help to...
Neutrinoless double beta decay ($0\nu\beta\beta$) is a hypothetical nuclear process which, if observed, would have far-reaching implications in particle physics. Being a lepton number violating process, the observation of $0\nu\beta\beta$ is direct evidence for physics beyond the Standard Model. In addition, it would prove that neutrinos are Majorana particles, and contribute to the...
Neutrinoless double-beta decay (0νββ) is a key process to address some of the major outstanding issues in particle physics, such as the lepton number conservation and the Majorana nature of the neutrino. Several efforts have taken place in the last decades in order to reach higher and higher sensitivity on its half-life. The next-generation of experiments aims at covering the Inverted-Ordering...
MicroBooNE is an 85-tonne active volume liquid-argon time projection chamber located in the Booster Neutrino Beam and NuMI beam at Fermilab. It was operational from 2015 to 2020 and collected the largest neutrino-argon interaction dataset to date. The primary goals of MicroBooNE are to understand the low-energy excess observed by MiniBooNE, make precise measurements of neutrino interactions on...
Monitored neutrino beams represent a powerful and cost effective tool to suppress cross section related systematics for the full exploitation of data collected in long baseline oscillation projects like DUNE and Hyper-Kamiokande. In the last years the NP06/ENUBET project has demonstrated that the systematic uncertainties on the neutrino flux can be suppressed to 1% in an accelerator based...
Future neutrino oscillation experiments demand a precise estimation of neutrino flux. The leading flux uncertainty comes from inadequate understanding of primary and secondary hadron-nucleus interactions. The NA61/SHINE experiment at CERN's Super Proton Synchrotron measures various hadron production processes with the goal of reducing the flux uncertainty of current and future...
The Exa.TrkX Graph Neural Network (GNN) for reconstruction of liquid argon time projection chamber (LArTPC) data is a message-passing attention network over a heterogeneous graph structure, with separate subgraphs of 2D nodes (hits in each plane) connected across planes via 3D nodes (space points). The model provides a consistent description of the neutrino interaction across all...
The current and next-generation liquid argon time projection chamber (LArTPC) detectors offer a great opportunity to search for rare, beyond-Standard Model (BSM) physics such as baryon number violation. During operation, these detectors generate high-resolution images of particle interactions, making them well-suited for applying and leveraging deep learning techniques to search for rare...
One of the requirements of the front-end electronics in the HK experiment is that it must be designed to be placed inside the water vessels due to the detector size, which amounts to a total of ~40,000 inside photo-sensors. Otherwise, the cables connecting to the roof would be too heavy and long, which would cause a reduction in signal amplitude and quality degradation. This solution poses...
Supernova neutrinos have enormous importance for ongoing research in astrophysics, nuclear and particle physics. However, existing simulations of this complex event, although increasingly sophisticated, still do not guarantee with sufficient confidence a reliable description of the emission. In this situation, it seems important to study as accurately as possible the only such event observed...
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 world’s most intense neutrino beams produced by the...
The Super-Kamiokande (SK) and the Kamioka Liquid-scintillator Antineutrino Detector (KamLAND) experiments are neutrino observatories located in the Kamioka mine in Japan. A pre-supernova (preSN) alarm has been launched by SK in 2021, aimed at detecting neutrinos produced during the silicon-burning phase of massive stars before a core-collapse supernova (CCSN) occurs. Since 2015, KamLAND has...
Neutrinoless double-beta decay (0νββ) is a key process to address some of the major outstanding issues in particle physics, such as the lepton number conservation and the Majorana nature of the neutrino. Several efforts have taken place in the last decades in order to reach higher and higher sensitivity on its half-life. The next-generation of experiments aims at covering the Inverted-Ordering...
In the context of two flavour neutrino oscillations, it is understood that the 2×2 mixing matrix is parameterized by one angle and a Majorana phase. However, this phase does not impact the oscillation probabilities in vacuum or in matter with constant density. Interestingly, the Majorana phase becomes relevant when we describe neutrino oscillations along with neutrino decay. This is due to the...
Future neutrino experiments and rare event searches require exceptionally large detectors with high granularity. I will discuss LArPix, which provides an integrated detector system (amplification, triggering, digitization, and multiplexed readout) that has been designed to scale in excess of 10$^{6}$ channels. Results from the production of 0.5 million LArPix channels and performance in a...
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for 0νββ decay that has successfully reached the one-tonne mass scale. The detector, located at the LNGS in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of...
The Hyper-Kamiokande (HK) is the next-generation long baseline neutrino experiment currently being constructed in Japan. It will have two underground water-Cherenkov detectors - the 260 kt far detector and approx. 1 kt intermediate detector (IWCD). The Water Cherenkov Test Experiment (WCTE) at CERN will evaluate different technologies and methodologies used in water Cherenkov detectors. It...
Primordial black holes are hypothetical Black Holes generated in the first instants of the Universe life. Focusing on Primordial Black Hole masses in the range [$5\times 10^{14}$ − $5\times 10^{15}$] g, we point out that the neutrinos emitted by PBHs evaporation can interact through the coherent elastic neutrino-nucleus scattering producing an observable signal in multi-ton Dark Matter direct...
We would like to report on the recent results on proton decay searches in Super-Kamiokande (SK). We will cover the updated results since NNN19 using the pure water detector phase data, including the flagship modes: $p→e^+π^0$, $p→μ^+π^0$, and $p→ν ̅K^+$.
There are many theories which predict different nucleon decay modes, and therefore it is important to experimentally search for various...
DarkSide-20k (DS-20k) will explore the dark matter WIMP hypothesis with a dual-phase time projection chamber detector filled with 50 tonnes of low-radioactivity liquid argon extracted from underground sources. Besides the primary physics goal of DS-20k, the low-energy threshold ( ~1 keV) of the detector will allow it to observe neutrinos from core-collapse supernovae (CCSN) via coherent...
SNO+ is a multipurpose liquid scintillator detector located at SNOLAB in Canada. The primary focus is to search for neutrino-less double beta decay of 130Te but, prior to isotope loading the experiment has been operated with a pure water, and now a pure liquid scintillator target. This poster will present the current status and performance of the experiment and recent results including first...
T2K has successfully developed a beam Monte Carlo simulation called Jnubeam for the neutrino flux prediction in both near and far detectors, which are essential for neutrino oscillation and cross section analyses. Jnubeam is based on the no longer maintained GEANT3 package, which is difficult to support. The current simulation also uses the software FLUKA to simulate the hadronic production...
The Deep Underground Neutrino Experiment (DUNE) is an international project for neutrino physics and proton decay searches, currently in the design and construction stages. When built, the world's most intense neutrino beam will cross the two detectors composing DUNE. The near detector, placed close to the beginning of the beam line located at Fermilab, will measure the un-oscillated neutrino...
Hyper-Kamiokande (HK) is the successor of the Super-Kamiokande (SK) experiment; HK has a world class physics programme including accelerator neutrino beam as well as search for proton decays and neutrino from sun, atmosphere and astrophysical sources. HK will be using the same 295 km baseline as T2K (Tokai2Kamioka) but with a larger Far Detector (FD) fiducial mass than SK and a higher beam...
The Water-Cherenkov Test Experiment (WCTE) is a prototype water Cherenkov detector which will be placed in the T9 beam area at CERN, operated with a low momentum (200-1200 MeV/c) $\pi^{\pm}$, $\mu^{\pm}$, $e^{\pm}$ and $p^{+}$ particle flux. The main purpose of this experiment is to prove the new technologies that are being developed for the next-generation water-Cherenkov experiments,...
