0000000001276860

AUTHOR

V. Veeraraghavan

showing 6 related works from this author

The ATLAS Data Acquisition and High Level Trigger system

2016

Journal of Instrumentation 11(06), P06008 (2016). doi:10.1088/1748-0221/11/06/P06008

High level triggerComputer sciencedata acquisitionPhysics::Instrumentation and DetectorsLarge hadron collideronline filteringTrigger Concepts and Systems (Hardware and Software)Control and Monitor Systems Online01 natural sciencesOnline farms and online filteringData acquisitionRecopilación de datos[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Detectors and Experimental TechniquesInstrumentationMathematical PhysicsSettore FIS/01Online Farms and Online FilteringLarge Hadron ColliderControl and monitor systems onlineATLAS experimentATLASmedicine.anatomical_structureTrigger concepts and systems (hardware and software)Triggers and rulesComputer hardwareperformanceOnline farms andControl and monitor systems online; Data acquisition concepts; Online farms and online filtering; Trigger concepts and systems (hardware and software)Ciências Naturais::Ciências Físicas:Ciências Físicas [Ciências Naturais]Data Acquisition ConceptsATLAS detector; ATLAS experiment; CERN; Large Hadron ColliderATLAS experiment610Accelerator Physics and Instrumentation530LHC ATLAS High Energy Physics TriggerAtlas (anatomy)0103 physical sciencesmedicineddc:610ElectronicsInstrumentation (computer programming)Control and monitor systems online; Data acquisition concepts; Online farms and; online filtering; Trigger concepts and systems (hardware and software)010306 general physicsCiencias ExactasScience & Technology010308 nuclear & particles physicsbusiness.industryData acquisition conceptsFísicaAcceleratorfysik och instrumenteringtriggerSistema en líneaData flow diagrammonitoringHigh Energy Physics::Experimentbusiness
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High-ET isolated-photon plus jets production in pp collisions at s=8 TeV with the ATLAS detector

2017

The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an ...

Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsPhotonLarge Hadron ColliderPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas detectorAstrophysics::High Energy Astrophysical Phenomena01 natural sciences7. Clean energyNuclear physics0103 physical sciencesTransverse momentumHigh Energy Physics::Experiment010306 general physicsNuclear Physics B
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Measurement of thett¯production cross section inpp¯collisions ats=1.96  TeVusing soft electronb-tagging

2010

The authors present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Using 318 pb{sup -1} of data collected with the CDF II detector, they measure the t{bar t} production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9{sub -1.0}{sup +1.0}(stat.){sub -1.0}{sup +1.1}(syst.) pb. The cross section value assumes a top quark mass of m{sub t} is presented in the paper. This result is cons…

Top quarkCollider physicsHadronTevatronGeneral Physics and AstronomyElementary particleKinematicsElectronJet (particle physics)01 natural sciences7. Clean energyParticle identificationlaw.inventionlawInvariant massFermilabNuclear ExperimentQuantum chromodynamicsPhysicsLarge Hadron ColliderLuminosity (scattering theory)Supersymmetryb-taggingHadronizationTransverse planeProduction (computer science)Collider Detector at FermilabQuarkSemileptonic decayNuclear and High Energy PhysicsParticle physicsBar (music)Astrophysics::High Energy Astrophysical PhenomenaBottom quarkMeasure (mathematics)Standard ModelNuclear physicsCross section (physics)Particle decay0103 physical sciencesCollider010306 general physicsCompact Muon SolenoidMuonBranching fraction010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyMultiplicity (mathematics)FermionVertex (geometry)Pair productionHigh Energy Physics::ExperimentEnergy (signal processing)Bar (unit)LeptonPhysical Review D
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Measurement of the Spectral Shape of the β -Decay of Xe137 to the Ground State of Cs137 in EXO-200 and Comparison with Theory

2020

We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden nonunique β-decay transition ^{137}Xe(7/2^{-})→^{137}Cs(7/2^{+}). The experimental data were acquired by the EXO-200 experiment during a deployment of an AmBe neutron source. The ultralow background environment of EXO-200, together with dedicated source deployment and analysis procedures, allowed for collection of a pure sample of the decays, with an estimated signal to background ratio of more than 99 to 1 in the energy range from 1075 to 4175 keV. In addition to providing a rare and accurate measurement of the first-forbidden nonunique β-decay shape, this work constitut…

PhysicsSpectral shape analysisGeneral Physics and AstronomyNuclear dataContext (language use)Electron7. Clean energy01 natural sciencesSpectral line0103 physical sciencesNeutron sourceAtomic physics010306 general physicsGround stateEnergy (signal processing)Physical Review Letters
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Measurement of the Spectral Shape of the beta-decay of 137Xe to the Ground State of 137Cs in EXO-200 and Comparison with Theory

2020

We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden non-unique $\beta$-decay transition $^{137}\textrm{Xe}(7/2^-)\to\,^{137}\textrm{Cs}(7/2^+)$. The experimental data were acquired by the EXO-200 experiment during a deployment of an AmBe neutron source. The ultra-low background environment of EXO-200, together with dedicated source deployment and analysis procedures, allowed for collection of a pure sample of the decays, with an estimated signal-to-background ratio of more than 99-to-1 in the energy range from 1075 to 4175 keV. In addition to providing a rare and accurate measurement of the first-forbidden non-unique $\bet…

Nuclear Theory (nucl-th)Nuclear TheoryFOS: Physical sciencesNuclear Experiment (nucl-ex)Nuclear Experiment
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Eos: conceptual design for a demonstrator of hybrid optical detector technology

2023

Abstract Eos is a technology demonstrator, designed to explore the capabilities of hybrid event detection technology, leveraging both Cherenkov and scintillation light simultaneously. With a fiducial mass of four tons, Eos is designed to operate in a high-precision regime, with sufficient size to utilize time-of-flight information for full event reconstruction, flexibility to demonstrate a range of cutting edge technologies, and simplicity of design to facilitate potential future deployment at alternative sites. Results from Eos can inform the design of future neutrino detectors for both fundamental physics and nonproliferation applications. This paper describes the conceptual design and po…

ilmaisimettutkimuslaitteetneutriinothiukkasfysiikkaInstrumentationMathematical PhysicsJournal of Instrumentation
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