Performance of the ATLAS muon trigger in pp collisions at $\sqrt{s}=8$ TeV

ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review


The performance of the ATLAS muon trigger system is evaluated with proton-proton collision data collected in 2012 at the Large Hadron Collider at a centre-of-mass energy of 8 TeV. It is primarily evaluated using events containing a pair of muons from the decay of $Z$ bosons. The efficiency of the single-muon trigger is measured for muons with transverse momentum 25 <$p_T$ <100 GeV, with a statistical uncertainty of less than 0.01% and a systematic uncertainty of 0.6%. The $p_T$ range for efficiency determination is extended by using muons from decays of $J/\psi$ mesons, $W$ bosons, and top quarks. The muon trigger shows highly uniform and stable performance. The performance is compared to the prediction of a detailed simulation.
Original languageEnglish
Article number120
Number of pages31
JournalEuropean Physical Journal C
Issue number13 March 2015
Publication statusPublished - 13 Mar 2015


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