Conveners
Calorimetry - Poster Session
- Toshiyuki Iwamoto (University of Tokyo)
- Christophe Clement (Stockholm University)
The MEGII experiment searches for the μ+ → e+γ decay with a sensitivity of 6*10-14 at 90% C.L. The precise measurement of the kinematical variables of the two particles in the final state, generated by muons stopped in a thin target, is key in finding the signature of this process. A major upgrade has been carried out over the last years and a new Liquid Xenon (LXe) calorimeter has been...
The Mu2e experiment at Fermilab will search for the Standard Model forbidden conversion of a negative muon into an electron and the calorimeter is an important part of this experiment. It is based on undoped CsI crystals, each one read by two custom-made arrays of UV-extended Silicon Photomultipliers (SiPMs). Two SiPMs glued on a copper holder and two independent Front End Electronics (FEE)...
The Liquid Argon Calorimeters are employed by ATLAS for all electromagnetic calorimetry and for hadronic calorimetry in the region from |η| = 1.5 to |η| = 4.9. It also provides inputs to the first level of the ATLAS trigger. After successful period of data taking during the LHC Run-2 the ATLAS detector entered a long shutdown period starting 2019. In 2022 the LHC Run-3 should see an increased...
The MEG II experiment searches for $\mu \rightarrow e \gamma$ decay which is one of the charged lepton flavor violation decays, and the discovery of the decay will be a clear evidence of new physics beyond the Standard Model. The liquid xenon (LXe) gamma-ray detector to precisely measure the energy, position, and timing of the gamma-ray from $\mu \rightarrow e \gamma$ is a key to the...
The Crilin calorimeter is a semi-homogeneous calorimeter based on Lead Fluoride (PbF2) Crystals readout by surface-mount UV-extended Silicon Photomultipliers (SiPMs). It is a proposed solution for the electromagnetic calorimeter of the Muon Collider. A high granularity is required in order to distinguish signal particles from the background and to solve the substructures necessary for jet...
The reconstruction of electrons and photons in CMS depends on topological clustering of the energy deposited by an incident particle in different crystals of the electromagnetic calorimeter (ECAL). These clusters are formed by aggregating neighbouring crystals according to the expected topology of an electromagnetic shower in the ECAL. The presence of upstream material causes electrons and...
The FoCal-E detector is a part of the FoCal detector aiming to provide unique capabilities to measure small-x gluon distributions via prompt photon production. It represents an upgrade to the ALICE experiment, and will be installed during LS3 for data taking in 2027–2029 at the LHC.
This detector is composed of a Si+W sampling calorimeter hybrid design combining two different Si (Silicon)...
The Mu2e experiment at Fermilab aims to search for the SM forbidden process of muon to electron conversion in the Coulomb field of Al nuclei. The signal signature consists of 104.96 MeV monoenergetic
conversion electrons, identified by a complementary
measurement carried out by a very precise straw-tube tracker and an electromagnetic calorimeter.
The calorimeter is composed of 3.4×3.4×20...
The CMS Collaboration is preparing to build replacement endcap calorimeters for the HL-LHC era. The new high-granularity calorimeter (HGCAL) is, as the name implies, a highly-granular sampling calorimeter with 47 layers of absorbers (mainly lead and steel) interspersed with active elements: silicon sensors in the highest-radiation regions, and scintillator tiles equipped with on-tile SiPMs in...
Several future Higgs factories based on the electron-positron collider are planned for precision Higgs physics to search for the new physics beyond the Standard Model. The calorimeters with the high granularity play a crucial role on the precision Higgs measurement. Especially the high granularity of the cell size of the $5~\mathrm{mm}\times5~\mathrm{mm}$ is required for the electromagnetic...
TileCal, the central hadron calorimeter of the ATLAS experiment at the Large Hadron Collider (LHC), is readout by about 10,000 photomultipliers (PMTs). Earlier studies of performance showed a degradation in PMTs response as a function of the integrated anode charge. At the end of the High-Luminosity LHC (HL-LHC) program, the expected integrated charge for PMTs reading out the most exposed...
The Light-only Liquid Xenon (LoLX) experiment is designed to study the properties of light emission and transport in liquid xenon (LXe) using silicon photomultipliers (SiPMs). In addition, we also plan to perform long-term stability studies of the SiPMs in LXe. Another important goal of the LoLX experiment is to characterize and utilize the differences in the timing of Cherenkov and...
Noble liquid calorimetry is a well proven technology that successfully operated in numerous particle physics detectors (D0, H1, NA48, NA62, ATLAS, …). Its excellent energy resolution, linearity, stability, uniformity and radiation hardness as well as good timing properties make it a very good candidate for future hadron and lepton colliders. Recently, a highly granular noble liquid sampling...
Jets play a central role in many physics analyses. Initially jets based on topological clusters (Topo jets) using only the calorimeter information have been used. In the last years, jets reconstructed with the Particle-Flow algorithm (PFlow jets), leveraging also the tracking information, found increasing application. It is thus necessary to test if the calibration methods applied to Topo jets...
SiPMs, Silicon Photo-Multipliers also referred to as Multi-Pixel Photon Counters (MPPCs), are solid state photo detectors, which consist of a high density matrix of avalanche photodiodes. Each photodiode operates in Geiger mode and works as photon-independent counter. They are characterized by an high internal gain which allows to detect from single photon to several thousand of photons....
The dual-readout calorimetric technique reconstructs the event-by-event electromagnetic fraction of hadronic shower through the simultaneous measurement of scintillating (S) and Cherenkov (C) light produced by the shower development. The new generation of prototypes, based on Silicon Photomultipliers (SiPMs) readout, is adding an unprecedented granularity to the well-known energy resolution....
The Mu2e experiment at Fermi National Accelerator Laboratory (Batavia, Illinois, USA) searches for the charged-lepton flavor violating neutrino-less conversion of a negative muon into an electron in the field of an aluminum nucleus. The dynamics of such a process is well modelled by a two-body decay, resulting in a mono-energetic electron with energy slightly below the muon rest mass (104.967...
The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at the LHC. It is made of steel plates acting as absorber and scintillating tiles as active medium. The TileCal response is calibrated to electromagnetic scale by means of several dedicated calibration systems.
The accurate time calibration is important for the energy reconstruction, non-collision...
The challenge for new calorimetry for incoming experiments at intensity frontiers is to provide detectors with ultra-precise time resolution and supreme energy resolution.
Two very promising materials on the market are BrilLanCe (Cerium doped Lanthanum Bromide, LaBr3 (Ce)) and LYSO (Lutetium Yttrium OxyorthoSilicate, Lu2(1-x) Y2x SiO5 (Ce)), supported by recent developments aiming at...
The Tile Calorimeter (TileCal) is a sampling hadronic calorimeter covering the central region of the ATLAS experiment, with steel as absorber and plastic scintillators as active medium. The High-Luminosity phase of LHC, delivering five times the LHC nominal instantaneous luminosity, is expected to begin in 2029. TileCal will require new electronics to meet the requirements of a 1 MHz trigger,...
