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SUMMARY:The CMS HGCAL  - Anne-Marie Magnan (Imperial College)
DTSTART:20180123T150000Z
DTEND:20180123T160000Z
UID:TALK80191@talks.cam.ac.uk
CONTACT:Matthew Kenzie
DESCRIPTION:The High Luminosity LHC (HL-LHC) will integrate 10 times more 
 luminosity than the LHC\, posing significant challenges for radiation tole
 rance and event pileup on detectors\, especially for forward calorimetry\,
  and hallmarks the issue for future colliders. As part of its HL-LHC upgra
 de program\, the CMS collaboration is designing a High Granularity Calorim
 eter to replace the existing endcap calorimeters. It features unprecedente
 d transverse and longitudinal segmentation for both electromagnetic (ECAL)
  and hadronic (HCAL) compartments. This will facilitate particle-flow calo
 rimetry\, where the fine structure of showers can be measured and used to 
 enhance pileup rejection and particle identification\, whilst still achiev
 ing good energy resolution. The ECAL and a large fraction of HCAL will be 
 based on hexagonal silicon sensors of 0.5-1cm2 cell size\, with the remain
 der of the HCAL based on highly-segmented scintillators with SiPM readout.
  The intrinsic high-precision timing capabilities of the silicon sensors w
 ill add an extra dimension to event reconstruction\, especially in terms o
 f pileup rejection. An overview of the HGCAL project is presented\, coveri
 ng motivation\, engineering design\, readout and trigger concepts\, and pe
 rformance (simulated and from beam tests).
LOCATION:Rutherford Seminar Room B
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