Conveners
Running performance, upgrade
- Martin Aleksa (CERN)
Running performance, upgrade
- Martin Aleksa (CERN)
ALICE (A Large Ion Collider Experiment) incorporates two kinds of electromagnetic calorimeters: highly granulated photon spectrometer PHOS and large acceptance calorimeter EMCAL/DCAL. Both are located in the central part of the ALICE detector.
The PHOS spectrometer is an electromagnetic calorimeter based on scintillating PbWO$_4$ crystals dedicated to the precise measurements of spectra,...
The Belle II experiment at the SuperKEKB accelerator complex is the intensity frontier electron-positron colliding beam experiment. The electromagnetic calorimeter consists of the 8736 CsI(Tl) crystals with the attached PIN-photodiodes inherited from the Belle experiment. In order to ensure high rate capability and immunity against beam background, the electronics have been upgraded with...
Liquid argon (LAr) sampling calorimeters are employed by ATLAS for all electromagnetic calorimetry in the pseudo-rapidity region |η| < 3.2, and for hadronic and forward calorimetry in the region from |η| = 1.5 to |η| = 4.9. In the first LHC run a total luminosity of 27 fb$^{-1}$ has been collected at center-of-mass energies of 7-8 TeV. After detector consolidation during a long shutdown, Run-2...
Many physics analyses using the Compact Muon Solenoid (CMS) detector at the LHC require accurate, high resolution electron and photon energy measurements. Excellent energy resolution is crucial for studies of Higgs boson decays with electromagnetic particles in the final state, as well as searches for very high mass resonances decaying to energetic photons or electrons. The CMS electromagnetic...
The CMS Electromagnetic Calorimeter (ECAL) is a high resolution crystal calorimeter operating at the CERN LHC. It is responsible for the identification and precise reconstruction of electrons and photons in CMS, which were crucial in the discovery and subsequent characterization of the Higgs boson. It also contributes to the reconstruction of tau leptons, jets, and calorimeter energy sums,...
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 scintillators are read out by wavelength shifting fibres to photomultiplier tubes (PMTs at the back of each wedge-shaped calorimeter module. The analogue signals from the PMTs are amplified, shaped, and...
We present developments towards an engineering design of the phase 2 upgrade of the CMS endcap calorimeter with a focus on the section instrumented with scintillator tiles directly read by SiPMs. With respect to earlier developments targeted at a future e+e- collider, additional challenges in terms of radiation hardness, data rates and mechanical integration including cooling need to be...
The existing CMS endcap calorimeters will be replaced with a High Granularity Calorimeter (HGCAL) for operation at the High Luminosity (HL) LHC. Radiation hardness and excellent physics performance will be achieved by utilising silicon pad sensors and SiPM-on-scintillator tiles with high longitudinal and transverse segmentation. One of the major challenges of the HL-LHC will be the high pileup...
