Speaker
Description
The High‑Luminosity LHC (HL-LHC) upgrade presents formidable challenges in the forward region of the CMS detector, particularly due to intense radiation levels and pileup. To address these challenges, the CMS collaboration is replacing its endcap calorimeters with a high‑granularity calorimeter (HGCAL), featuring unprecedented transverse and longitudinal segmentation and delivering 5D space–time–energy readout. Silicon sensors—with cell sizes of 0.5–1.0 sq. cm—constitute the electromagnetic section and highly irradiated regions of the hadronic section, while plastic scintillator tiles with SiPM readout cover the lower‑radiation areas. The design supports advanced particle-flow reconstruction, enabling fine shower structure measurement, excellent energy resolution, and enhanced pileup rejection. Fast timing resolution (up to 30 ps) further boosts the calorimeter’s ability to resolve collisions in dense environments.
Details
Mukund Shelake,
Tata Institute of Fundamental Research, Mumbai, India
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | CMS |
| Is the speaker for that presentation defined? | Yes |