Overview of the high-level trigger electron and photon selection for the ATLAS experiment at the LHC

6533b7dbfe1ef96bd12700fe

RESEARCH PRODUCT

Overview of the high-level trigger electron and photon selection for the ATLAS experiment at the LHC

G. Kilvington A. De Santo P. Pinto G. Cataldi J. Masik E. Segura G. Crone D. A. Scannicchio S.j. Wheeler C. Sanchez S. Sushkov P.c. Muino Werner Wiedenmann Andrew Lankford Paolo Morettini A.g. Mello D. Cavalli M.d. Gomez B. Pinto Enrico Pasqualucci A. Sobreira Christopher Bee Pilar Casado Mark Sutton V. M. Ghete B. Epp Nikolay Nikitin A. Kootz Tadashi Maeno S. Armstrong M. Bosman N. Panikashvili C. Osuna E. G. Thomas Thorsten Wengler H. Garitaonandia J. Kirk Georg Zobernig Speranza Falciano Stefano Rosati J.m. De Seixas Dmitry Emeliyanov Francois Touchard Valerio Vercesi F. Parodi E. Stefanidis Serguei Sivoklokov A. Ventura Ricardo Gonçalo R. Soluk Fred Wickens Z. Qian Lamberto Luminari C. Meessen Shlomit Tarem J.l. Pinfold Stefan Tapprogge G. Comune Monika Wielers M. Biglietti Andrea Negri A. Di Mattia John Baines Per Werner Nicolas Ellis Silvia Resconi A. Lowe Sonja Kabana J. Haller A. Khomich C. Santamarina V.p. Reale C. Padilla Simon George G. Usaib J.a. Bogaerts Denis Oliveira Damazio B. Caron Nikos Konstantinidis Aleandro Nisati A. Dos Anjos Carlo Schiavi Roger Moore

subject

Nuclear and High Energy Physics Particle physics Physics::Instrumentation and Detectors Monte Carlo method 02 engineering and technology Electron 01 natural sciences Atlas (anatomy)Nuclear electronics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering medicine [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Electrical and Electronic Engineering Detectors and Experimental Techniques Physics Large Hadron Collider 010308 nuclear & particles physics Event (computing)ATLAS experiment 020206 networking & telecommunications ATLAS High Level Trigger Photon medicine.anatomical_structure Nuclear Energy and Engineering Filter (video)Energy (signal processing)

description

texte intégral : http://cdsweb.cern.ch/record/846438; The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in$pp$collisions at 14 TeV center-of-mass energy, whilst rejecting the enormous number of background events. The High-Level Trigger (HLT$=$second level trigger and Event Filter), which is a software based trigger will need to reduce the level-1 output rate of$approx75$kHz to$approx200$Hz written out to mass storage. In this talk an overview of the current physics and system performance of the HLT selection for electrons and photons is given. The performance has been evaluated using Monte Carlo simulations and has been partly demonstrated in the ATLAS testbeam in 2004. The efficiency for the signal channels, the rate expected for the selection, the global data preparation and execution times will be highlighted. Furthermore, some physics examples will be discussed to demonstrate that the triggers are well adapted for the physics programme envisaged at the LHC.

year	journal	country	edition	language
2005-06-04	14th IEEE-NPSS Real Time Conference, 2005.

https://doi.org/10.1109/rtc.2005.1547533