Sep 25 – 29, 2017
Montenegro, Budva, Becici
Europe/Podgorica timezone

Performance of the ATLAS Muon Trigger in Run 2

Sep 28, 2017, 12:00 PM
Conference Hall (Montenegro, Budva, Becici)

Conference Hall

Montenegro, Budva, Becici

Splendid Conference & SPA Resort, 85315 Becici, Montenegro Hotel Splendid
Sectional Triggering, Data Acquisition, Control Systems Triggering, Data Acquisition, Control Systems


Dr Marcus Morgenstern (on behalf of the ATLAS collaboration)


Events containing muons in the final state are an important signature for many analyses being carried out at the Large Hadron Collider (LHC), including both standard model measurements and searches for new physics. To be able to study such events, it is required to have an efficient and well-understood muon trigger. The ATLAS muon trigger consists of a hardware based system (Level 1), as well as a software based reconstruction (High Level Trigger). Due to high luminosity and pile up conditions in Run 2, several improvements have been implemented to keep the trigger rate low while still maintaining a high efficiency. Some examples of recent improvements include requiring coincidence hits between different layers of the muon spectrometer, improvements for handling overlapping muons, and optimised muon isolation. We will present an overview of how we trigger on muons, recent improvements, and the performance of the muon trigger in Run 2 data.

Primary author

Dr Marcus Morgenstern (on behalf of the ATLAS collaboration)

Presentation materials