0000000000373233

AUTHOR

V.p. Reale

showing 2 related works from this author

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

2005

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 …

Nuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsMonte Carlo method02 engineering and technologyElectron01 natural sciencesAtlas (anatomy)Nuclear electronics0103 physical sciences0202 electrical engineering electronic engineering information engineeringmedicine[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Electrical and Electronic EngineeringDetectors and Experimental TechniquesPhysicsLarge Hadron Collider010308 nuclear & particles physicsEvent (computing)ATLAS experiment020206 networking & telecommunicationsATLASHigh Level TriggerPhotonmedicine.anatomical_structureNuclear Energy and EngineeringFilter (video)Energy (signal processing)14th IEEE-NPSS Real Time Conference, 2005.
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Deployment of the ATLAS High-Level Trigger

2006

The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area during 2005, commissioning and cosmics tests with the full detector in 2006 and collisions in 2007. This paper reviews the experience gained in the test beam, describes the current status and discusses the further enhancements to be made. We address issues related to the dataflow, integration of selection algorithms, testing, software distribution, installation and improvements.

Nuclear and High Energy PhysicsDataflowCluster (spacecraft)01 natural sciencesAtlas (anatomy)testbeam0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]medicineElectrical and Electronic EngineeringSelection algorithmSimulationhigh-level triggersPhysicshigh-energy physics010308 nuclear & particles physicsbusiness.industryDetectorATLASSoftware distributionTriggertriggeringmedicine.anatomical_structureNuclear Energy and EngineeringClustersoftware integrationSoftware deploymentSystems engineeringSystem integrationLHCbusinessIEEE Transactions on Nuclear Science
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