6533b83afe1ef96bd12a773a

RESEARCH PRODUCT

Performance of the ATLAS Trigger System in 2010

Atlas CollaborationVasiliki MitsouLuca FioriniEduardo Ros MartínezMaría Victoria Castillo GiménezJuan A. Fuster VerdúCarmen García GarcíaSusana Cabrera UrbánSalvador Martí GarcíaJosé Salt CairolsCarlos Lacasta LlácerJuan Antonio Valls FerrerEmilio Higón RodríguezAntonio Ferrer SoriaSantiago González De La HozMohammed KaciYesenia Hernández JiménezMiguel Villaplana Pérez

subject

Physics::Instrumentation and DetectorsCol·lisions (Física nuclear)Nuclear ExperimentPartícules (Física nuclear)

description

Proton-proton collisions at root s = 7 TeV and heavy ion collisions at root(NN)-N-s = 2.76 TeV were produced by the LHC and recorded using the ATLAS experiment's trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented.

yearjournalcountryeditionlanguage
2012-01-01
http://hdl.handle.net/10550/36184