Implementation and Performance of the High-Level Trigger electron and photon selection for the ATLAS experiment at the LHC

Conférence Chapitre d'actes Implementation and Performance of the High-Level Trigger electron and photon selection for the ATLAS experiment at the LHC eng 2008 author Monticelli Fernando collaborator Benslama Kamal 81467 collaborator Berry Tamla 809834 collaborator Doval Yanzi Maria 748121 collaborator Gaumer Olivier 628987 collaborator Losada Mariana 556281 collaborator Riu Dachs Inmaculada 134676 collaborator Wu Xin 27612 ATLAS e/gamma group 476-480 10.1142/9789812819093_0083 978-981-281-908-6 http://eproceedings.worldscinet.com/9789812819093/9789812819093_0083.html The ATLAS three-tier trigger system faces the challenge to reduce the incoming rate of 40 MHz to ~200 Hz. It consists of hardware based Level-1, and a software based High-Level Trigger (HLT).1 In this talk an overview of the selection algorithms for electrons and photons will be given as well as the expected performance. The electron and photon trigger menu and the strategy for the initial phase of LHC exploitation. Article on behalf of the ATLAS e/gamma workshop group High Level Trigger ATLAS Electron Photon. Dewey 500.2 World Scientific Publishing Co. 34 Département de physique nucléaire et corpusculaire 132 false Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications: Proceedings of the 10th Conference Barone, M & Gaddi, A. & Ruchti, R. 8-12 October 2007 Villa Olmo (Como, Italy) 55b631c2-dbca-48cc-82d0-ccb8dda53081 Proceedings chapter (Accepted version) Restricted Wu67.pdf 135825 application/pdf restrictedAccess Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

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Implementation and Performance of the High-Level Trigger electron and photon selection for the ATLAS experiment at the LHC	Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications: Proceedings of the 10th Conference			2008	663	0

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Berry, Tamla