0000000000945975

AUTHOR

F. S. Tehrani

showing 3 related works from this author

Measurement of the flavour composition of dijet events in pp collisions at √s = 7 TeV with the ATLAS detector

2013

This paper describes a measurement of the flavour composition of dijet events produced in pp collisions at s√=7~TeVs=7~TeV using the ATLAS detector. The measurement uses the full 2010 data sample, corresponding to an integrated luminosity of 39 pb−1. Six possible combinations of light, charm and bottom jets are identified in the dijet events, where the jet flavour is defined by the presence of bottom, charm or solely light flavour hadrons in the jet. Kinematic variables, based on the properties of displaced decay vertices and optimised for jet flavour identification, are used in a multidimensional template fit to measure the fractions of these dijet flavour states as functions of the leadin…

Physics and Astronomy (miscellaneous)Ciencias FísicasHadronFlavourNuclear physics01 natural sciencesHigh Energy Physics - ExperimentLuminosity (scattering theory)//purl.org/becyt/ford/1 [https]High Energy Physics - Experiment (hep-ex)Ciencias Naturales y ExactasNaturvetenskap[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Charm (quantum number)Nuclear ExperimentQCPhysicsJet (fluid)Luminosity (scattering theory)PhysicsSettore FIS/01 - Fisica SperimentaleParticle physicsCross-SectionATLASmedicine.anatomical_structureComputingMethodologies_DOCUMENTANDTEXTPROCESSINGLHCNatural SciencesParticle Physics - ExperimentParticle physics530 PhysicsCiências Naturais::Ciências FísicasAstrophysics::High Energy Astrophysical Phenomena:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesddc:500.2Física de Partículas y Campos530GluonNuclear physicsAtlas (anatomy)Jet (fluid)0103 physical sciencesmedicineCharm (quantum number)Rapidityddc:530High Energy Physics010306 general physicsEngineering (miscellaneous)Hadron-Hadron ScatteringScience & Technology010308 nuclear & particles physicsParton DistributionsHigh Energy Physics::PhenomenologyFísica//purl.org/becyt/ford/1.3 [https]GluonJETHADRON-HADRON COLLISIONSHadronExperimental High Energy PhysicsFlavourRapidityHigh Energy Physics::ExperimentFLAVORColliderEuropean Physical Journal C
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Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

2013

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of √s = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of Ks and Λ particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncert…

Physics and Astronomy (miscellaneous)large hadron colliderPhysics::Instrumentation and DetectorsHadronMonte Carlo methodNuclear Theory01 natural sciences7. Clean energyHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)Naturvetenskap[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear ExperimentPhysicsJet (fluid)End-Cap CalorimeterLarge Hadron ColliderATLAS experimentSettore FIS/01 - Fisica Sperimentalemedicine.anatomical_structurePhysical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGFísica nuclearLHC ATLAS High Energy PhysicsNatural SciencesParticle Physics - ExperimentParticle physics530 PhysicsCiências Naturais::Ciências Físicas:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesddc:500.2530Nuclear physicsPionAtlas (anatomy)0103 physical sciencesBeam TestsmedicineFysikddc:530010306 general physicsEngineering (miscellaneous)Ciencias ExactasScience & TechnologyHadron-Hadron ScatteringATLAS detectorCalorimeter (particle physics)010308 nuclear & particles physicsFísicaBarrel Calorimeterjet energyExperimental High Energy Physicsproton-proton collisionsHigh Energy Physics::Experiment
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The BaBar detector: Upgrades, operation and performance

2013

The BABAR detector operated successfully at the PEP-Il asymmetric e(+) e(-) collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems, as well as the trigger, online and offline computing, and aspects of event reconstruction since the beginning of data taking.

Online and offlinePhysics - Instrumentation and DetectorsGeneral-purpose detector for colliding beamPhysics::Instrumentation and DetectorsBABARSettore ING-INF/01 - Elettronica01 natural sciences/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitationlaw.inventionHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)lawBeam monitoringPEP2[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Ream monitoringInstrumentationQCEvent reconstructionPhysicsoperational experience; high-luminosity storage ring operation; beam monitoring; general-purpose detector for colliding beamsGeneral-purpose detector for colliding beamsDetectorElectrical engineeringInstrumentation and Detectors (physics.ins-det)upgrade [detector]:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]Beam monitoring; General-purpose detector for colliding beams; High-luminosity storage ring operation; Operational experience; Nuclear and High Energy Physics; InstrumentationPARTICLE PHYSICSFísica nuclearPARTICLE PHYSICS;PEP2;BABARSDG 6 - Clean Water and SanitationperformanceNuclear and High Energy PhysicsFOS: Physical sciencesNuclear physics0103 physical sciencesddc:530[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physicsCollideractivity report010308 nuclear & particles physicsbusiness.industryHigh-luminosity storage ring operation:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]Operational experienceExperimental High Energy PhysicsBaBarPhysics::Accelerator PhysicsHigh Energy Physics::Experimentbusiness
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