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Performance of the ATLAS Trigger System in 2010

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Performance of the ATLAS Trigger System in 2010

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ATLAS Collaboration; Mitsou, Vasiliki; Fiorini, Luca; Ros Martínez, Eduardo; Castillo Giménez, María Victoria; Fuster Verdú, Juan A.; García García, Carmen; Cabrera Urbán, Susana; Martí García, Salvador; Salt Cairols, José; Lacasta Llácer, Carlos; Valls Ferrer, Juan Antonio; Higón Rodríguez, Emilio; Ferrer Soria, Antonio; González de la Hoz, Santiago; Kaci, Mohammed; Hernández Jiménez, Yesenia; Villaplana Pérez, Miguel

Aquest document és un/a article, creat/da en: 2012

Este documento está disponible también en : 10.1140/epjc/s10052-011-1849-1

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.

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