Description
This session will be on display on Monday afternoon
Link to the contributions
Most of experiments for neutrino physics and rare event search exploit the scintillation light coming from liquefied noble gases. Light is usually emitted in the VUV range and is detected by large sensitive area detectors, typically photomultiplier tubes (PMT), directly immersed in the liquid and so operating at cryogenic temperature. Considering the great difficulties in producing large...
Recently, a nuclear physicists team from ATOMKI (Debrecen, Hungary) observed three significant anomalies in the emission of electron-positron pairs in the $^7$Li(p,e$^+$e$^−$)$^8$Be, $^3$H(p,e$^+$e$^−$)$^4$He and $^{11}$B(p,e$^+$e$^−$)$^{12}$C nuclear reactions [1-3]. These anomalies have been interpreted as the signature of the existence of a boson (referred as X17) of mass M$_{X17}$ = 16.8...
In preparation for the high-luminosity LHC phase, the ATLAS detector will be upgraded with a new silicon inner tracker, the ITk, relying on a cooling system based on carbon dioxide (CO2) evaporative properties.
In order to test the key aspect of the cooling, prototypes of the cooling system for the different ITk Outer Endcap layers were built in Milan and tested at the CERN CO2 BabyDEMO...
Currently PSI delivers the most intense continuous muon beam in the world with up to few 10^8 μ+/s and aims at keeping its leadership upgrading its beamlines within the HIMB project to reach intensities up to 10^10 μ+/s, with a huge impact for low-energy, high-precision muon based searches.
The use of hyper parameter search algorithms has shown that not only the stringent rate requirements...
The goal of KM3NeT ARCA is to search for astrophysical neutrinos with a neutrino telescope operating on the bottom of the Mediterranean Sea, at 3,500 m depth, for more than 15 years. The neutrino telescope is made of Detection Units (DU) each consisting of 18 Digital Optical Modules (DOMs), a Vertical Electro-Optical Cable (VEOC) and a Base Module (BM) whose purpose is to collect the data...
The MOLLER (Measurement Of Lepton Lepton Electroweak Reaction) experiment at the Thomas Jefferson National Accelerator Facility (JLab), Newport News, Virginia, USA is aiming to measure the parity-violating asymmetry (A$_{pv}$) in the electron-electron (Møller) scattering with unprecedented precision. The flux of Møller scattered electrons from the liquid hydrogen target is measured by...
The LHCb detector has undergone a major upgrade that will enable the experiment to acquire data with an all-software trigger, made possible by front-end readout in real-time and the capabilities of performing the data selection algorithm while the data are acquired. Almost all the detector subsystems have been replaced by new designs mandated by the processing speed requirements to achieve...
The housing of the sensors for future Ring Imaging Cherenkov (RICH) detectors, regardless of the sensor choice, is a complex task, with many complex requirements. To optimize the required resources and simplify the design, different functions should be integrated in modular and self-contained functional units.
Silicon Photomultipliers (SiPMs) are among the potential photo-sensor candidates...
A Muon Collider is being proposed as a next-generation facility. This collider would have unique advantages, as clean events, similar to electron-positron colliders, are possible, and high collision energy, comparable to that of hadron colliders, could be reached due to negligible beam radiation losses. The beam-induced background, produced by muon decays in the beams and subsequent...
PIONEER is a next-generation precision experiment proposed at the Paul Scherrer Institute to perform high precision measurements of rare pion decays. By improving the precision on the experimental result on the charged pion branching ratio to electrons vs. muons and the pion beta decay by an order of magnitude, PIONEER will provide a pristine test of Lepton Flavour Universality and the Cabibbo...
The Mu2e experiment at Fermilab will search for the CLFV neutrinoless coherent muon to electron conversion in the field of an Al nucleus. The experimental signature of the process is a monochromatic electron (CE) with $E_{CE}$ =104.97 MeV/c. CE-like electrons could also come from background processes like the cosmic muons, Decays in Orbit of muons stopped in the Stopping Target (ST), Radiative...
The correlation coefficients of neutron and nuclear beta decays are a distinctive tool to probe physics beyond the standard model (BSM) in a low-energy regime. The BRAND is a unique experimental initiative aiming at the simultaneous measurement of 11 correlation coefficients (a, A, B, D, H, L, N, R, S, U, and V) of neutron decay, with an emphasis on H, L, S, U, and V, which have not been...
The use of ultra-lightweight flexible Printed Circuit Boards (PCBs) in silicon-based particle detectors was initially pioneered for the ALICE Inner Tracking System (ITS1) and the STAR tracker in the early 2000s. In this context, thin and flexible interconnections made of µm-scale polyimide (e.g. kapton) and metal (e.g. aluminum or copper) were specifically designed, offering a low-mass budget...
The MOLLER experiment aims to measure the parity-violating asymmetry (APV) in electron-electron scattering at 11 GeV, and thus determine the weak charge of the electron to a high precision (2.4%). Two of the key sub-systems in the experimental apparatus are the main detector array, consisting of 224 fused silica detector modules and electron beam Compton polarimeter. The main detector array...
The Compressed Baryonic Matter Experiment (CBM) at the Facility for Antiproton and Ion
Research (FAIR) is a fixed-target spectrometer designed to explore the high-density regime of the
QCD phase diagram at √sN N = 2.9 - 4.9 GeV (Au-Au collisions) with interaction rates reaching
10 MHz. The Inner Tracker is compromised of the Micro Vertex Detector (MVD) and the Silicon
Tracking System (STS)...
The forthcoming High Luminosity LHC (HL-LHC) program presents a formidable challenge for the constituent elements of the CMS Muon Detector. Current systems, encompassing Drift Tubes (DT), Resistive Plate Chambers (RPC), and Cathode Strip Chambers (CSC), are tasked with operating under conditions of 5 times higher instantaneous luminosity than originally designed, necessitating endurance for...
The ATLAS physics program at High Luminosity LHC (HL-LHC) calls for a precision in the luminosity measurement of 1%. A larger uncertainty would represent the dominant systematic error in precision measurements, including the Higgs sector. To fulfill such requirement in an environment characterized by up to 140 simultaneous interactions per crossing (200 in the ultimate scenario), ATLAS will...
The Muon $g-2$ Experiment at Fermilab aims to measure the muon anomalous magnetic moment with a precision of 140 parts per billion (ppb). The experiment collaboration has published the latest measurement based on the first three Runs (collected from 2018 to 2020) in August 2023 with a precision of 200 ppb. The experiment accumulated three more years of data, from 2020 to 2023, which are...
At the beginning of 2024 data taking of the Belle II experiment resumed after the Long Shutdown 1 (LS1), primarily required to install a new two-layer DEPFET detector (PXD) and upgrade components of the accelerator. The whole silicon tracker (VXD) was extracted from Belle II, and the outer strip detector (SVD) was split into its two halves to allow access for the PXD installation. Then a new...
The tracking performance of the ATLAS detector relies critically on its 4-layer Pixel Detector. As the closest detector component to the interaction point, this detector is subjected to a significant amount of radiation over its lifetime. At present, at the start of 2024-Run3 LHC collision ATLAS Pixel Detector on innermost layers, consisting of planar and 3D pixel sensors, will operate after...
Hyper-Kamiokande (Hyper-K) is to be the next generation of large-scale water Cherenkov detectors and aims to obtain exciting results in many fields such as the study of CP violation in the leptonic sector, the search for proton decay and the study of accelerator, atmospheric, solar neutrinos and neutrinos from astronomical origin.
The Hyper-K Far Detector will be characterized by a hybrid...
In the next years the Large Hadron Collider will enter its High-Luminosity (HL-LHC) phase. The instantaneous luminosity will increase from about $2 \times 10^{34}cm^{-2}s^{-1}$ to $5-7 \times 10^{34}cm^{-2}s^{-1}$ and, accordingly, the number of pileup interactions will increase from about 60 to 140-200.
All CMS subsystems will be upgraded in order to maintain the current physics...
The International Muon Collider Collaboration is making great efforts to design a new collider with muon beams operating at 10 TeV centre-of-mass energy. Such an apparatus will offer enormous potential for the exploration of the particle physics frontier, combining the precision of electron-positron machines with the low level of beamstrahlung and synchrotron radiation, and the high...
The KM3NeT-ARCA neutrino detector is the largest underwater neutrino telescope operating in the Mediterranean Sea at a depth of 3500m, 100 km from the coast of Portopalo di Capo Passero. It is composed of strings anchored in the deep sea and kept vertical using a buoy.
Each string hosts 18 Digital Optical Modules (DOMs), containing 31 optical sensors. The entire telescope, once completed,...
This contribution presents a novel single moderator neutron spectrometer, named "TetraBall", developed at INFN and optimized for characterizing the neutron field in the CMS experimental cavern. The Tetraball condenses the functionality of several Bonner Speres (BS) in a single moderator and it is equipped with 42 SiC radhard detectors organized in a tetraedric geometry designed to be...
RPC detectors play a crucial role in triggering events containing muons in the central region of ATLAS. In view of the HL-LHC program, the existing RPC system, consisting of six independent concentric cylindrical detector layers each providing a full space time localization of hits, is currently facing a significant upgrade. In the next few years, 306 triplets of new generation RPCs will be...
The Silicon Tracking System (STS) is the core detector system of the Compressed Baryonic Matter (CBM) experiment at the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany. CBM will study matter at highest baryonic densities in collisions of nuclear beams with a stationary target. The long latency for identification and the changing signature of the events drive us to use...
The Fermilab Muon g-2 experiment observes a more than 5$\sigma$ discrepancy
in the anomalous magnetic moment a$_\mu$ with respect to the Standard Model prediction, which might be explained by hadronic corrections, whose theoretical prediction is difficult and uncertain. There are few ways to check this and the MUonE experiment proposes to do so by a unique direct measurement, which is...
The Compressed Baryonic Matter (CBM) experiment is under construction at the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany. CBM will investigate matter at highest baryonic densities in collisions of nuclear beams with targets at center of mass energies $\sqrt{s_{NN}}$ = 2.9 - 4.9GeV. Because of the long beam extraction technique employed at the SIS100 synchrotron, CBM´s...
The optical data transport system of the KM3NeT neutrino telescope at the bottom of the Mediterranean Sea will provide more than 6000 optical modules in the detector arrays with a point-to-point optical connection to the control stations onshore. The ARCA and ORCA detectors of KM3NeT are being installed at a depth of about 3500m and 2500 m, respectively and their distance to the control...
The FAMU experiment (Fisica degli Atomi MUonici), led by INFN at the Rutherford Appleton Laboratory (UK), is designed to measure the Zemach radius of the proton in muonic hydrogen (μH) with 1% relative uncertainty. A 55 MeV/c negative muon beam is produced by the ISIS synchrotron at the RIKEN-RAL muon facility. The beam is directed against a gaseous hydrogen-oxygen target, where a pulsed...
The LHCb experiment at CERN is set to undergo a series of planned major upgrades to its detector system in the coming years, in preparation for the High Luminosity LHC. A new detector system for the downstream tracking stations, called Mighty Tracker, is proposed for installation during the long shutdown 4. The Mighty Tracker is of hybrid nature, comprising silicon pixels in the inner region...
The Time-Of-Flight TOF detectors of the muEDM experiment at PSI will be presented here.
The muEDM experiment aims at setting the ground for a new direct electric dipole moment (EDM)
search using muons. The experiment will perform this dedicated search using for the first time worldwide
the frozen-spin technique, aiming at improving the current sensitivity by more than three orders
of...
The CMS Precision Proton Spectrometer (PPS) detector system measures the positions and time-of-flights (ToF) of protons that remain intact in the collision in the very forward region at the LHC. The detector system consists of movable tracking and timing stations around 200 m on both sides of the interaction point of the CMS. The detectors can be moved to a few millimetres from the circulating...
The ICARUS-T600 LAr TPC is presently used as far detector of the Short Baseline Neutrino (SBN) program at FNAL, to search for sterile neutrinos. As it is placed at shallow depth, in addition to a full coverage cosmic ray tagger, a system based on 360 large area Hamamatsu R5912-MOD PMTs was used, to reduce cosmic ray background. An important requirement is the calibration in gain and time of...
The proposed SHADOWS experiment, Search for Hidden And Dark Objects With the SPS, will be a proton beam-dump experiment at the CERN SPS. Positioned off-axis to suppress background, SHADOWS will profit from the high intensity ECN3 proton beam line, to explore the existence of a wide range of feebly-interacting particles (FIPs). The detector, with dimensions of 2.5$\times$2.5 m$^2$ and a length...
