May 15 – 20, 2016
EXCO in Daegu, Republic of Korea
Asia/Seoul timezone

HGCAL: A High-Granularity Calorimeter for the Endcaps of CMS at HL-LHC

May 18, 2016, 9:10 AM
20m
EXCO in Daegu, Republic of Korea

EXCO in Daegu, Republic of Korea

Speaker

Dr Christophe Ochando (Centre National de la Recherche Scientifique (FR))

Description

Calorimetry at the High Luminosity LHC (HL-LHC) faces two enormous challenges, particularly in the forward direction: radiation tolerance and unprecedented in-time event pileup. To meet these challenges, the CMS experiment has decided to construct a High Granularity Calorimeter (HGCAL), featuring a previously unrealized transverse and longitudinal segmentation, for both electromagnetic and hadronic compartments. This will facilitate particle-flow-type calorimetry, where the fine structure of showers can be measured and used to enhance particle identification, energy resolution and pileup rejection. The majority of the HGCAL will be based on robust and cost-effective hexagonal silicon sensors with ~1cm^2 or 0.5cm^2 hexagonal cell size, with the final 5 interaction lengths of the hadronic compartment being based on highly segmented plastic scintillator with on-scintillator SiPM readout. We present an overview of the HGCAL project, including the motivation, engineering design, readout/trigger concept and simulated performance.

Primary author

Dr Christophe Ochando (Centre National de la Recherche Scientifique (FR))

Presentation materials