21-25 June 2021
Clarion Congress Hotel Prague
Europe/Prague timezone
Proceedings of the ANIMMA 2021 conference are now available online in open access: https://www.epj-conferences.org/animma-2021

#01-247 ATLAS LAr Calorimeter Commissioning for LHC Run-3

22 Jun 2021, 14:00
AQUARIUS (Clarion Congress Hotel Prague)


Clarion Congress Hotel Prague

Oral presentation 01 Fundamental Physics 01 Fundamental Physics


ELLIS, Kay (CERN, Switzerland)


Liquid argon (LAr) sampling calorimeters are employed by ATLAS for all electromagnetic
calorimetry in the pseudo-rapidity region |η| < 3.2, and for hadronic and forward
calorimetry in the region from |η| = 1.5 to |η| = 4.9. In the first LHC run a total luminosity of
27 fb$^{−1}$ has been collected at center-of-mass energies of 7-8 TeV. After detector consolidation
during a long shutdown, Run-2 started in 2015 and about 150fb$^{−1}$ of data at a center-of-mass
energy of 13 TeV was recorded. With the end of Run-2 in 2018 a multi-year shutdown for the
Phase-I detector upgrades was begun.
As part of the Phase-I upgrade, new trigger readout electronics of the ATLAS Liquid-Argon
Calorimeter have been developed. Installation began at the start of the LHC shut down in
2019 and is expected to be completed in 2020. A commissioning campaign is underway in
order to realize the capabilities of the new, higher granularity and higher precision level-1
trigger hardware in Run-3 data taking. This contribution will give an overview of the new
trigger readout commissioning, as well as the preparations for Run-3 detector operation and
changes in the monitoring and data quality procedures to cope with the increased pileup.

Primary author

ELLIS, Kay (CERN, Switzerland)



Presentation Materials