28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Paving the way to reconstruct the 5D information of the CMS HGCAL detector at the HL-LHC

28 Jul 2020, 19:30
15m
virtual conference

virtual conference

Talk 13. Detectors for Future Facilities (incl. HL-LHC), R&D, Novel Techniques Detectors for Future Facilities (incl. HL-LHC), R&D, Novel Techniques

Speaker

Jingyu Zhang (Florida State University (US))

Description

To maintain and improve physics performance under the harsher conditions of the high luminosity LHC phase from 2026, the CMS collaboration has designed a novel endcap calorimeter that uses silicon sensors to achieve radiation tolerance, with the additional benefit of a very high readout granularity. In regions characterised by lower radiation levels, small scintillator tiles with individual SiPM readout are employed. A novel reconstruction approach is being developed to fully exploit the granularity and other significant features of the detector like precision timing, with a view to deployment in the high pileup environment of HL-LHC. An iterative reconstruction framework (TICL) has been put in place, and is being actively developed. The inputs to the framework are clusters of energy deposited in individual calorimeter layers delivered by a density-based algorithm which has recently been developed and tuned. In view of the expected pressure on the computing capacity in the HL-LHC era, the algorithms and their data structured are being designed with GPUs in mind. Preliminary results show that significant speed-up can be obtained running the clustering algorithm on GPUs. In addition, machine learning techniques based on cutting-edge techniques are being investigated and integrated into the reconstruction framework. This talk will describe the approaches being considered and show first results.

Primary author

Jingyu Zhang (Florida State University (US))

Presentation Materials