Speaker
Tomoe Kishimoto
(Kobe University (JP))
Description
Events with muons in the final state served an important signature
for many physics topics at Large Hadron Collider (LHC), for instance,
discovery of Higgs boson production, searches for new phenomena, and
measurements on the standard model processes like top-quark, W, Z
production. Thus, efficient trigger on muons in data taking and
understanding its performance were crucial to perform these physics
studies. At LHC high rejection power against large backgrounds, while
maintaining high efficiency for rare signal events, is required
already at such online trigger stage. The ATLAS experiment employs
a multi-level trigger architecture that selects the events in three
sequential steps of increasing complexity and accuracy to cope
with this challenging task.
This paper reports about efficiency, resolution, and general
performance of the ATLAS muon trigger by using proton-proton
collision data at sqrt(s)=8 TeV collected in year 2012.
Author
Tomoe Kishimoto
(Kobe University (JP))
