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Performance of the ATLAS Trigger System in 2010
Univ Savoie, LAPP, CNTS IN2P3, Annecy Le Vieux, France.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3049
2012 (English)In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 72, no 1, 1849- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2012. Vol. 72, no 1, 1849- p.
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-84561DOI: 10.1140/epjc/s10052-011-1849-1ISI: 000300631800017ScopusID: 2-s2.0-84876442054OAI: diva2:499429
QC 20120214.  Author count: 3049Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-03-27Bibliographically approved

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Lafaye, RemiLund-Jensen, BengtStrandberg, Jonas
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