17–24 Jul 2024
Prague
Europe/Prague timezone

The ATLAS Trigger System

19 Jul 2024, 08:30
18m
Terrace 2B

Terrace 2B

Parallel session talk 12. Operation, Performance and Upgrade (incl. HL-LHC) of Present Detectors Operation, Performance and Upgrade (incl. HL-LHC) of Present Detectors

Speaker

Denis Oliveira Damazio (Brookhaven National Laboratory (US))

Description

The ATLAS experiment in the LHC Run 3 uses a two-level trigger system to select events of interest to reduce the 40 MHz bunch crossing rate to a recorded rate of up to 3 kHz of fully-built physics events. The trigger system is composed of a hardware based Level-1 trigger and a software based High Level Trigger.
The selection of events by the High Level Trigger is based on a wide variety of reconstructed objects, including leptons, photons, jets, b-jets, missing transverse energy, and B-hadrons in order to cover the full range of the ATLAS physics programme.
We will present an overview of improvements in the reconstruction, calibration, and performance of the different trigger objects, as well as computational performance of the High Level Trigger system.

I read the instructions above Yes

Authors

Denis Oliveira Damazio (Brookhaven National Laboratory (US)) Junjie Zhu (University of Michigan (US))

Presentation materials