Mar 20 – 22, 2018
University of Washington Seattle
US/Pacific timezone

Tracking in Dense Environments for the HL-LHC ATLAS Detector

Mar 21, 2018, 5:10 PM
Physics-Astronomy Auditorium A118 (University of Washington Seattle)

Physics-Astronomy Auditorium A118

University of Washington Seattle

Oral 5: Advanced usage of tracks Young Scientist Forum


Felix Cormier (University of British Columbia (CA))


Tracking in dense environments, such as in the cores of high-energy jets, will be key for new physics searches as well as measurements of the Standard Model at the High Luminosity LHC (HL-LHC). The HL-LHC will operate in challenging conditions with large radiation doses and high pile-up (up to $\mu$=200). The current tracking detector will be replaced with a new all-silicon Inner Tracker for the Phase II upgrade of the ATLAS detector. In this talk, characterization of the HL-LHC tracker performance for collimated, high-density charged particles arising from high-momentum decays is presented. In such decays the charged-particle separations are of the order of the tracking detector granularity, leading to challenging reconstruction. The ability of the HL-LHC ATLAS tracker to reconstruct the tracks in such dense environments is discussed and compared to ATLAS Run-2 performance for a variety of relevant physics processes.

Primary author

Felix Cormier (University of British Columbia (CA))


Matthias Danninger (University of British Columbia (CA)) Nicholas Styles (Deutsches Elektronen-Synchrotron (DE))

Presentation materials