Calorimetry

Wednesday 21 Aug 2024, 10:30 → 12:30 America/Los_Angeles

Zoom:

https://stanford.zoom.us/j/92728532486pwd=eHBpcDQ0RjdnZlBjQmRHYW1WRjdFUT09

Password: 059507

Publications:

• https://cds.cern.ch/record/2870326 "Investigating the impact of 4D Tracking in ATLAS Beyond Run 4"

 

10:50 → 11:30 5D Calorimetry in ATLAS

10:50 Vertex t0 reconstruction using LAr

• t0 resolution studies in events with pileup
• how to best combine LAr with HGTD vertex t0 for overall t0 determination in ATLAS
• Particle flow applications of precision timing:
  o neutrons
  o track-cell matching
• Applications:
  o Impact of improved t0 for pileup forward jet suppression in VBF H>invisible (Run 4)
  o LLP search for displaced photons/jets (Run 3)
• Data studies
  o Data/MC
  o cross-talk
  o pulse shape and OFC optimization for timing using ML

Speakers: Doyeong Kim, Sanha Cheong (Stanford / SLAC)

11:00 Single pion studies

• time evolution/structure of pion showers
• response vs time
• neutron component identification

Speakers: Doyeong Kim, Zahra Farazpay (Loisiana Tech)

11:10 Space-time structure of hadronic showers

• Response vs time
• overlapping showers
• time-aware GNN PFlow reconstruction

Speaker: Zahra Farazpay (Loisiana Tech)

11:30 → 12:30 Higgs Factory Dual Readout Calorimetry with Fast Timing

11:30 Longitudinal information with precision timing

• single pion and jet response dependence as a function of longitudinal shower max
• Impact of dual SIPM readout in overall energy resolution
• Techniques and experimental challenges to determine longitudinal segmentation using timing.

11:50 Particle flow (Dual Readout + Fast Timing)

• Impact of precision timing in particle flow reconstruction
• Machine learning DRO+timing particle flow
• C/S + machine learning
• Combination of Crystal and Fiber calorimeters

12:10 Readout electronics

• 5-10 GHz Waveform digitizer
• 10ps TDC
• C/S extraction and data reduction, compression

Speakers: Lorenzo Rota (SLAC), Rainer Bartoldus (SLAC)