Triggers for displaced decays of long-lived neutral particles in the ATLAS detector

2013 Journal of Instrumentation  
A set of three dedicated triggers designed to detect long-lived neutral particles decaying throughout the ATLAS detector to a pair of hadronic jets is described. The efficiencies of the triggers for selecting displaced decays as a function of the decay position are presented for simulated events. The effect of pile-up interactions on the trigger efficiencies and the dependence of the trigger rate on instantaneous luminosity during the 2012 data-taking period at the LHC are discussed.
doi:10.1088/1748-0221/8/07/p07015 fatcat:n5fskxh27jgctlg7dcw2wyavmi