0000000001241884

AUTHOR

M. Wu

showing 48 related works from this author

Measurement of the Soft-Drop Jet Mass in pp Collisions at s=13  TeV with the ATLAS Detector

2018

Jet substructure observables have significantly extended the search program for physics beyond the standard model at the Large Hadron Collider. The state-of-the-art tools have been motivated by the ...

Quantum chromodynamicsPhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsAtlas detectorDrop (liquid)Physics beyond the Standard ModelHadronGeneral Physics and AstronomyObservable01 natural sciences0103 physical sciencesSubstructureHigh Energy Physics::Experiment010306 general physicsPhysical Review Letters
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Search for squarks and gluinos in final states with jets and missing transverse momentum using 36  fb−1 of s=13  TeV pp collision data with the ATLAS…

2018

A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented ...

PhysicsParticle physicsLarge Hadron ColliderMuon010308 nuclear & particles physicsHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyHadronElementary particleSupersymmetryElectron01 natural sciencesGluon0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysical Review D
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Search for the Xb and other hidden-beauty states in the π+π−ϒ(1S) channel at ATLAS

2015

This Letter presents a search for a hidden-beauty counterpart of the X(3872) in the mass ranges 10.05--10.31 GeV and 10.40--11.00 GeV, in the channel Xb→π+π−Υ(1S)(→μ+μ−), using 16.2 fb−1 of s√=8 TeV pp collision data collected by the ATLAS detector at the LHC. No evidence for new narrow states is found, and upper limits are set on the product of the Xb cross section and branching fraction, relative to those of the Υ(2S), at the 95% confidence level using the CLS approach. These limits range from 0.8% to 4.0%, depending on mass. For masses above 10.1 GeV, the expected upper limits from this analysis are the most restrictive to date. Searches for production of the Υ(13DJ), Υ(10860), and Υ(110…

Nuclear physicsPhysicsNuclear and High Energy PhysicsPionLarge Hadron Collidermedicine.anatomical_structureChannel (digital image)MesonBranching fractionAtlas (anatomy)medicineQuarkoniumX(3872)Physics Letters B
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Comparison of Fragmentation Functions for Jets Dominated by Light Quarks and Gluons from pp and Pb+Pb Collisions in ATLAS

2019

Charged-particle fragmentation functions for jets azimuthally balanced by a high-transverse-momentum, prompt, isolated photon are measured in 25  pb^{-1} of pp and 0.49  nb^{-1} of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The measurements are compared to predictions of Monte Carlo generators and to measurements of inclusively selected jets. In pp collisions, a different jet fragmentation function in photon-tagged events from that in inclusive jet events arises from the difference in fragmentation between light quarks and gluons. The ratios of the fragmentation functions in Pb+Pb events to that in pp events are used to e…

PhysicsLarge Hadron ColliderPhotonAstrophysics::High Energy Astrophysical PhenomenaGeneral Physics and AstronomyParton01 natural sciencesCharged particleNuclear physicsFragmentation (mass spectrometry)0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsNucleonJet quenchingPhysical Review Letters
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Measurement of exclusive γγ→ℓ+ℓ− production in proton–proton collisions at s=7 TeV with the ATLAS detector

2015

This Letter reports a measurement of the exclusive gamma gamma -> l(+)l(-) (l = e, mu) cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV by the ATLAS experiment at the LHC, based on an integrated luminosity of 4.6 fb(-1). For the electron or muon pairs satisfying exclusive selection criteria, a fit to the dilepton acoplanarity distribution is used to extract the fiducial cross-sections. The cross-section in the electron channel is determined to be sigma(excl)(gamma gamma -> e+e-) = 0.428 +/- 0.035 (stat.) +/- 0.018 (syst.) pbfor a phase-space region with invariant mass of the electron pairs greater than 24GeV, in which both electrons have transverse momentum p(T)…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderMuonProtonATLAS experimentAcoplanarityNuclear physicsmedicine.anatomical_structureAtlas (anatomy)PseudorapiditymedicineHigh Energy Physics::ExperimentInvariant massNuclear ExperimentPhysics Letters B
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Probing the Quantum Interference between Singly and Doubly Resonant Top-Quark Production in pp Collisions at s=13  TeV with the ATLAS Detector

2018

This Letter presents a normalized differential cross-section measurement in a fiducial phase-space region where interference effects between top-quark pair production and associated production of a single top quark with a W boson and a b-quark are significant. Events with exactly two leptons (ee, μμ, or eμ) and two b-tagged jets that satisfy a multiparticle invariant mass requirement are selected from 36.1  fb^{-1} of proton-proton collision data taken at sqrt[s]=13  TeV with the ATLAS detector at the LHC in 2015 and 2016. The results are compared with predictions from simulations using various strategies for the interference. The standard prescriptions for interference modeling are signifi…

PhysicsParticle physicsTop quarkLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyCollision01 natural sciencesPair productionPhase space0103 physical sciencesInvariant mass010306 general physicsLeptonBosonPhysical Review Letters
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Measurements of four-lepton production in pp collisions at s=8 TeV with the ATLAS detector

2016

A search is presented for a high-mass Higgs boson in the , , , and decay modes using the ATLAS detector at the CERN Large Hadron Collider. The search uses proton-proton collision data at a centre-o ...

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas (topology)Atlas detectorHigh Energy Physics::Phenomenology01 natural sciencesNuclear physics0103 physical sciencesHiggs bosonPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsLeptonPhysics Letters B
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Search for top squarks decaying to tau sleptons in pp collisions at s=13  TeV with the ATLAS detector

2018

A search for direct pair production of top squarks in final states with two tau leptons, b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data ...

PhysicsParticle physics010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::PhenomenologySupersymmetryCollision7. Clean energy01 natural sciencesPair production0103 physical sciencesTransverse momentumHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsLeptonPhysical Review D
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Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at s=13 TeV with the ATLAS detector

2019

An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of s=13 TeV are used, corresponding to an integrated luminosity of 36.1fb−1 . Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW=0.57−0…

PhysicsNuclear and High Energy PhysicsParticle physicsMuonLuminosity (scattering theory)Large Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyElectroweak interaction7. Clean energy01 natural sciencesPair productionmedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesmedicineHigh Energy Physics::Experiment010306 general physicsLeptonBosonPhysics Letters B
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Search for dark matter in association with a Higgs boson decaying to two photons at s=13  TeV with the ATLAS detector

2017

A search for dark matter in association with a Higgs boson decaying to two photons is presented. This study is based on data collected with the ATLAS detector, corresponding to an integrated lumino ...

PhysicsParticle physicsPhotonLarge Hadron ColliderPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas detectorBranching fractionAtlas (topology)Physics beyond the Standard ModelHigh Energy Physics::PhenomenologyDark matter01 natural sciencesNuclear physics0103 physical sciencesHiggs bosonHigh Energy Physics::Experiment010306 general physicsPhysical Review D
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Search for flavor-changing neutral currents in top quark decays t→Hc and t→Hu in multilepton final states in proton-proton collisions at s=13  TeV wi…

2018

Flavor-changing neutral currents are not present in the Standard Model at tree level and are suppressed in loop processes by the unitarity of the Cabibbo-Kobayashi-Maskawa matrix; the corresponding ...

PhysicsParticle physicsTop quarkUnitarity010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::Phenomenology0103 physical sciencesHigh Energy Physics::Experiment010306 general physics01 natural sciencesFlavorPhysical Review D
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Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton–proton collisions at s=13TeV…

2019

This Letter presents a search for new light resonances decaying to pairs of quarks and produced in association with a high- pT photon or jet. The dataset consists of proton–proton collisions with an integrated luminosity of 36.1 fb −1 at a centre-of-mass energy of s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Resonance candidates are identified as massive large-radius jets with substructure consistent with a particle decaying into a quark pair. The mass spectrum of the candidates is examined for local excesses above background. No evidence of a new resonance is observed in the data, which are used to exclude the production of a lepto-phobic axial-vector Z′ boson.

QuarkPhysicsNuclear and High Energy PhysicsLarge Hadron ColliderPhoton010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaDark matterResonance01 natural sciencesNuclear physics0103 physical sciencesMass spectrumSubstructureHigh Energy Physics::Experiment010306 general physicsBosonPhysics Letters B
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Constraints on off-shell Higgs boson production and the Higgs boson total width in ZZ → 4ℓ and ZZ → 2ℓ2ν final states with the ATLAS detector

2018

A measurement of off-shell Higgs boson production in the and decay channels, where ℓ stands for either an electron or a muon, is performed using data from proton–proton collisions at a centre-of-mass energy of TeV. The data were collected by the ATLAS experiment in 2015 and 2016 at the Large Hadron Collider, and they correspond to an integrated luminosity of . An observed (expected) upper limit on the off-shell Higgs signal strength, defined as the event yield normalised to the Standard Model prediction, of 3.8 (3.4) is obtained at 95% confidence level (CL). Assuming the ratio of the Higgs boson couplings to the Standard Model predictions is independent of the momentum transfer of the Higgs…

13000 GeV-cmsoff-shell [Higgs particle]Electronwidth [Higgs particle]01 natural sciences7. Clean energySubatomär fysikHiggs particle: hadroproductionscattering [p p]Z0: pair productionCollisionsпротон-протонные столкновенияQCupper limit [width]Large Hadron Colliderlcsh:QC1-999:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]pair production [Z0]muon: pair productionCERN LHC Collgluon gluon: fusionHiggs bosonХиггса бозонS126Wcolliding beams [p p]p p: scatteringmass spectrum: (4lepton)Ciências Naturais::Ciências Físicaspair production [neutrino]HIGH ENERGY PHYSICSSEARCHddc:530pair production [electron]010306 general physicsParticle PhysicsParticle Physics LHC ATLASMuonHiggs particle: couplingScience & TechnologyATLAS detector010308 nuclear & particles physics(4lepton) [mass spectrum]HIGGSExperimental High Energy PhysicsPARTON DISTRIBUTIONS; SEARCH; PARTICLE; DECAY; MASSATLAS детекторp p: colliding beamslcsh:PhysicsHiggs particle: widthБольшой адронный коллайдерfusion [gluon gluon]Higgs particle: decaydilepton: mass spectrumAtlas detectorCiencias FísicasS126SZZmass spectrum [dilepton]High Energy Physics - Experiment//purl.org/becyt/ford/1 [https]electron: pair productionSignal strengthwidth: upper limitSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Physicsproton–proton collisionsneutrino: pair productionATLAS experimentMomentum transferSettore FIS/01 - Fisica Sperimentaledecay [Higgs particle]ATLASLHCPARTICLEParticle Physics - ExperimentCIENCIAS NATURALES Y EXACTASjetsParticle physicsNuclear and High Energy Physicscoupling [Higgs particle]530 PhysicsHiggs boson:Ciências Físicas [Ciências Naturais]MASSFísica de Partículas y CamposComputer Science::Digital Libraries0103 physical sciencespair production [muon]Ciencias ExactasHiggs particle: off-shellhep-exHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]Física//purl.org/becyt/ford/1.3 [https]leptonic decay [Z0]PARTON DISTRIBUTIONSZ0: leptonic decayhadroproduction [Higgs particle]ZZ → 4ℓHigh Energy Physics::ExperimentHadron-hadron collisionsDECAYZ Z → 2ℓ2νexperimental results
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Measurement of jet charge in dijet events froms=8  TeVppcollisions with the ATLAS detector

2016

The momentum-weighted sum of the charges of tracks associated to a jet is sensitive to the charge of the initiating quark or gluon. This paper presents a measurement of the distribution of momentum ...

QuarkQuantum chromodynamicsCoupling constantPhysicsParticle physics010308 nuclear & particles physicsScatteringAtlas detectorHigh Energy Physics::Latticemedia_common.quotation_subjectNuclear TheoryHigh Energy Physics::PhenomenologyPerturbative QCD01 natural sciencesAsymmetryGluonNuclear physics0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsmedia_commonPhysical Review D
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Search for Resonant and Nonresonant Higgs Boson Pair Production in the bb¯τ+τ− Decay Channel in pp Collisions at s=13  TeV with the ATLAS Detector

2018

A search for resonant and nonresonant pair production of Higgs bosons in the b (b) over bar tau(+)tau(-) final state is presented. The search uses 36.1 fb(-1) of pp collision data with root s = 13 ...

PhysicsParticle physicsPhoton010308 nuclear & particles physicsBar (music)High Energy Physics::PhenomenologyATLAS experimentRoot (chord)General Physics and Astronomy01 natural sciencesmedicine.anatomical_structurePair productionAtlas (anatomy)0103 physical sciencesHiggs bosonmedicine010306 general physicsBosonPhysical Review Letters
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Search for the Production of a Long-Lived Neutral Particle Decaying within the ATLAS Hadronic Calorimeter in Association with a Z Boson from pp Colli…

2019

This Letter presents a search for the production of a long-lived neutral particle (Zd) decaying within the ATLAS hadronic calorimeter, in association with a standard model (SM) Z boson produced via an intermediate scalar boson, where Z→+ (=e, μ). The data used were collected by the ATLAS detector during 2015 and 2016 pp collisions with a center-of-mass energy of s=13 TeV at the Large Hadron Collider and correspond to an integrated luminosity of 36.1±0.8 fb-1. No significant excess of events is observed above the expected background. Limits on the production cross section of the scalar boson times its decay branching fraction into the long-lived neutral particle are derived as a function of …

PhysicsParticle physicsLarge Hadron ColliderBranching fractionHadronGeneral Physics and AstronomyScalar boson01 natural sciences0103 physical sciencesHiggs bosonHigh Energy Physics::ExperimentNeutron010306 general physicsNeutral particleBosonPhysical Review Letters
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Search for resonances in the mass distribution of jet pairs with one or two jets identified as b-jets in proton–proton collisions at s=13 TeV with th…

2016

Searches for high-mass resonances in the dijet invariant mass spectrum with one or two jets identified as $b$-jets are performed using an integrated luminosity of $3.2$ fb$^{-1}$ of proton--proton collisions with a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. No evidence of anomalous phenomena is observed in the data, which are used to exclude, at 95% credibility level, excited $b^{*}$ quarks with masses from 1.1 TeV to 2.1 TeV and leptophobic $Z'$ bosons with masses from 1.1 TeV to 1.5 TeV. Contributions of a Gaussian signal shape with effective cross sections ranging from approximately 0.4 to 0.001 pb are also excluded in the mass…

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderProtonMass distribution010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::Phenomenology01 natural sciencesLuminosityNuclear physicsmedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesmedicinePhysics::Accelerator PhysicsHigh Energy Physics::ExperimentInvariant mass010306 general physicsBosonPhysics Letters B
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Search for heavy resonances decaying to a photon and a hadronically decaying Z/W/H boson in pp collisions at s=13  TeV with the ATLAS detector

2018

This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at √ s = 13     TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139     fb − 1 . The analysis is performed by reconstructing hadronically decaying Higgs boson ( H → b ¯ b ) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-s…

PhysicsQuarkParticle physicsTop quarkPhotonLarge Hadron Collider010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyParton01 natural sciences0103 physical sciencesHiggs bosonHigh Energy Physics::Experiment010306 general physicsBosonPhysical Review D
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Search for Higgs bosons produced via vector-boson fusion and decaying into bottom quark pairs in s=13  TeV pp collisions with the ATLAS detector

2018

A search for the b (b) over bar decay of the Standard Model Higgs boson produced through vector-boson fusion is presented. Three mutually exclusive channels are considered: two all-hadronic channel ...

Condensed Matter::Quantum GasesPhysicsFusionParticle physicsLarge Hadron Collider010308 nuclear & particles physicsAtlas detectorAtlas (topology)High Energy Physics::Phenomenology01 natural sciencesBottom quarkVector boson0103 physical sciencesHiggs bosonHigh Energy Physics::Experiment010306 general physicsComputer Science::Information TheoryBosonPhysical Review D
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Measurement of Higgs boson production in the diphoton decay channel inppcollisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector

2014

A measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 4.5 fb(-1) of proton-proton collisions data at root s = 7 TeV and 20.3 fb(-1) at root s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. The number of observed Higgs boson decays to diphotons divided by the corresponding Standard Model prediction, called the signal strength, is found to be mu = 1.17 +/- 0.27 at the value of the Higgs boson mass measured by ATLAS, m(H) = 125.4 GeV. The analysis is optimized to measure the signal strengths for individual Higgs boson production processes at this value of m(H). They are found to be mu(ggF) = 1.32…

PhysicsNuclear and High Energy PhysicsParticle physicsPhotonLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::Phenomenology7. Clean energy01 natural sciencesStandard ModelVector bosonGluonNuclear physicsmedicine.anatomical_structure13. Climate actionAtlas (anatomy)0103 physical sciencesHiggs bosonmedicineHigh Energy Physics::ExperimentCenter of mass010306 general physicsPhysical Review D
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Search for new phenomena in dijet events using 37  fb−1 of pp collision data collected at s=13  TeV with the ATLAS detector

2017

Dijet events are studied in the proton-proton collision dataset recorded at root s = 13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated lumino ...

PhysicsParticle physicsLarge Hadron ColliderPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::PhenomenologyCollision01 natural sciencesNuclear physicsAngular distributionmedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesmedicinePhysics::Accelerator PhysicsHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysical Review D
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Measurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at sNN=2.76 TeV with the ATLAS detector

2018

ATLAS measurements of the production of muons from heavy-flavor decays in root s(NN) = 2.76 TeV Pb+Pb collisions and root s = 2.76 TeV pp collisions at the LHC are presented. Integrated luminositie ...

PhysicsLarge Hadron ColliderMuonPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::PhenomenologyHadron01 natural sciencesAzimuthNuclear physicsmedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesmedicinePhysics::Accelerator PhysicsHigh Energy Physics::ExperimentAngular dependenceNuclear Experiment010306 general physicsAnisotropyPhysical Review C
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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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Measurements of spin correlation in top-antitop quark events from proton-proton collisions ats=7  TeVusing the ATLAS detector

2014

Measurements of spin correlation in top quark pair production are presented using data collected with the ATLAS detector at the LHC with proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 4.6 fb(-1). Events are selected in final states with two charged leptons and at least two jets and in final states with one charged lepton and at least four jets. Four different observables sensitive to different properties of the top quark pair production mechanism are used to extract the correlation between the top and antitop quark spins. Some of these observables are measured for the first time. The measurements are in good agreement with the Stan…

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsTop quarkLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyTevatron01 natural sciences7. Clean energyBottom quarkNuclear physicsPair production0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsLeptonBosonPhysical Review D
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Search for a Heavy Neutral Particle Decaying toeμ,eτ, orμτinppCollisions ats=8  TeVwith the ATLAS Detector

2015

This Letter presents a search for a heavy neutral particle decaying into an opposite-sign different-flavor dilepton pair, e(+/-) mu(-/+), e(+/-) tau(-/+), or mu(+/-) tau(-/+) using 20.3 fb(-1) of pp collision data at root s = 8 TeV collected by the ATLAS detector at the LHC. The numbers of observed candidate events are compatible with the standard model expectations. Limits are set on the cross section of new phenomena in two scenarios: the production of (nu) over tilde (tau) in R-parity-violating supersymmetric models and the production of a lepton-flavor-violating Z' vector boson.

PhysicsParticle physicsMuonLarge Hadron ColliderAtlas detectorHigh Energy Physics::PhenomenologyGeneral Physics and AstronomySupersymmetryVector bosonNuclear physicsHigh Energy Physics::ExperimentNeutronNeutral particleRadioactive decayPhysical Review Letters
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Combination of the Searches for Pair-Produced Vectorlike Partners of the Third-Generation Quarks at s=13  TeV with the ATLAS Detector

2018

A combination of the searches for pair-produced vectorlike partners of the top and bottom quarks in various decay channels (T -> Zt/Wb/Ht, B -> Zb/Wt/Hb) is performed using 36.1 fb(-1) of pp ...

QuarkPhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsAtlas detectorGeneral Physics and AstronomyElementary particle01 natural sciencesThird generation3. Good healthmedicine.anatomical_structureAtlas (anatomy)Isospin0103 physical sciencesmedicine010306 general physicsTellurium compoundsPhysical Review Letters
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Study of ordered hadron chains with the ATLAS detector

2017

The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190 μb-1 of minimum-bias events collected with proton-proton colli…

Physics and Astronomy (miscellaneous)Atlas detectorHadronNuclear Theory01 natural sciencesangular correlation [charged particle]High Energy Physics - ExperimentSubatomär fysikHigh Energy Physics - Experiment (hep-ex)correlation: Bose-EinsteinSubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]difference [momentum]Nuclear ExperimentQCQuantum chromodynamicsPhysicsLarge Hadron ColliderAtlas (topology)Settore FIS/01 - Fisica SperimentaleMonte Carlo [numerical calculations]ATLASCERN LHC Coll7000 GeV-cmsComputingMethodologies_DOCUMENTANDTEXTPROCESSINGangular distribution: measuredLHCcolliding beams [p p]numerical calculations: Monte Carlomeasured [angular distribution]Particle Physics - ExperimentCoherence (physics)correlation: two-particleParticle physicsp p: scatteringCiências Naturais::Ciências Físicas530 Physics:Ciências Físicas [Ciências Naturais]ground state [hadron]interferencequantum chromodynamics: stringFOS: Physical sciences530Nuclear physicsNational Graphene InstituteBose-Einstein [correlation][ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciencesddc:530High Energy Physics010306 general physicstwo-particle [correlation]Ciencias ExactasScience & TechnologyATLAS detector010308 nuclear & particles physicshep-exmomentum: differenceHigh Energy Physics::PhenomenologyFísicacoherencestring [quantum chromodynamics]hadron: ground stateQCD stringResearchInstitutes_Networks_Beacons/national_graphene_instituteExperimental High Energy Physicsproton-proton collisionsHigh Energy Physics::Experimentcharged particle: angular correlationp p: colliding beamsexperimental resultsPhysical Review D
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Search for supersymmetry in events with four or more leptons in s=13  TeV pp collisions with ATLAS

2018

Results from a search for supersymmetry in events with four or more charged leptons (electrons, muons and taus) are presented. The analysis uses a data sample corresponding to 36.1 fb-1 of proton-proton collisions delivered by the Large Hadron Collider at s=13 TeV and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronically decaying taus are designed to target a range of supersymmetric scenarios that can be either enriched in or depleted of events involving the production and decay of a Z boson. Data yields are consistent with Standard Model expectations and results are used to set upper limits on the event yields from processes beyond the Standard Model. Exclu…

PhysicsGluinoParticle physicsLarge Hadron Collider010308 nuclear & particles physicsPhysics beyond the Standard ModelHigh Energy Physics::PhenomenologySupersymmetry01 natural sciencesLightest Supersymmetric ParticleStandard Model0103 physical sciencesHigh Energy Physics::ExperimentHiggsino010306 general physicsLeptonPhysical Review D
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Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN=5.02  TeV with the ATLA…

2018

This Letter presents a measurement of γγ→μ^{+}μ^{-} production in Pb+Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at sqrt[s_{NN}]=5.02  TeV with an integrated luminosity of 0.49  nb^{-1}. The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from γγ through the interaction of the large electromagnetic fields of the nuclei. The contribution from background sources of muon pairs is removed using a template fit method. In peripheral collisions, the muons exhibit a strong back-to-back correlation consistent with previous measurements of muon pair production in ultrap…

PhysicsLarge Hadron ColliderMuonPhotonLuminosity (scattering theory)Physics::Instrumentation and Detectors010308 nuclear & particles physicsScatteringGeneral Physics and Astronomy01 natural sciencesAcoplanarityNuclear physicsPair production13. Climate action0103 physical sciencesPhysics::Accelerator PhysicsHigh Energy Physics::ExperimentImpact parameterNuclear Experiment010306 general physicsPhysical Review Letters
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Search for photonic signatures of gauge-mediated supersymmetry in 8TeV pp collisions with the ATLAS detector

2015

A search is presented for photonic signatures motivated by generalized models of gauge-mediated supersymmetry breaking. This search makes use of 20.3  fb[superscript −1] of proton-proton collision data at √s = 8  TeV recorded by the ATLAS detector at the LHC, and explores models dominated by both strong and electroweak production of supersymmetric partner states. Four experimental signatures incorporating an isolated photon and significant missing transverse momentum are explored. These signatures include events with an additional photon, lepton, b-quark jet, or jet activity not associated with any specific underlying quark flavor. No significant excess of events is observed above the Stand…

transverse momentum [photon]Большой адронный коллайдерCiencias FísicasPhysics beyond the Standard ModelPROTON-PROTON COLLISIONSFORTRAN CODEElementary particlesymmetry breaking [supersymmetry]gravitinoHigh Energy Physics - ExperimentMEASUREMENTSubatomär fysik//purl.org/becyt/ford/1 [https]High Energy Physics - Experiment (hep-ex)суперсимметрияSubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]HADRON COLLIDERSGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)QC8000 GeV-cmsPhysicsLarge Hadron ColliderJET ENERGYSettore FIS/01 - Fisica SperimentaleElectroweak interactionPhotonicSUPERGAUGE TRANSFORMATIONSSupersymmetryATLASbottom [jet]Supersymmetry breakingCERN LHC CollPhotonic signaturesgauge [mediation]Physical Sciencesflavor [quark]GravitinoLHCcolliding beams [p p]CIENCIAS NATURALES Y EXACTASsignatureParticle Physics - ExperimentParticle physicsNuclear and High Energy Physics530 PhysicsCiências Naturais::Ciências Físicas:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesстолкновение частицpair production [neutralino]530MISSING TRANSVERSE-MOMENTUMNuclear physicsGauge-mediatedphotonic signatures; gauge-mediated supersymmetry; ATLAS detectorFysikddc:530High Energy PhysicsCiencias ExactasPROTON-PROTON COLLISIONS; MISSING TRANSVERSE-MOMENTUM; JET ENERGY; MEASUREMENT; ROOT-S=7 TEV; HADRON COLLIDERS; SUPERGAUGE TRANSFORMATIONS; FORTRAN CODE; MODEL; LHC; PERFORMANCEScience & Technologyelectroweak interactionATLAS detectorROOT-S=7 TEVHigh Energy Physics::PhenomenologyFísica//purl.org/becyt/ford/1.3 [https]PERFORMANCEAstronomíaMODELgravitationmissing-energy [transverse momentum]Proton-Proton CollisionsExperimental High Energy PhysicsHigh Energy Physics::ExperimentSupersymmetryATLAS детекторexperimental resultsLepton
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Search for invisible Higgs boson decays in vector boson fusion at s=13TeV with the ATLAS detector

2019

We report a search for Higgs bosons that are produced via vector boson fusion and subsequently decay into invisible particles. The experimental signature is an energetic jet pair with invariant mass of O(1)TeV and O(100)GeV missing transverse momentum. The analysis uses 36.1 fb −1 of pp collision data at s=13TeV recorded by the ATLAS detector at the LHC. In the signal region the 2252 observed events are consistent with the background estimation. Assuming a 125GeV scalar particle with Standard Model cross sections, the upper limit on the branching fraction of the Higgs boson decay into invisible particles is 0.37 at 95% confidence level where 0.28 was expected. This limit is interpreted in H…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyScalar boson01 natural sciences7. Clean energyStandard ModelVector boson0103 physical sciencesHiggs bosonHigh Energy Physics::ExperimentInvariant mass010306 general physicsBosonPhysics Letters B
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Search for resonant WZ production in the fully leptonic final state in proton–proton collisions at s=13TeV with the ATLAS detector

2018

A search for a heavy resonance decaying into WZ in the fully leptonic channel (electrons and muons) is performed. It is based on proton–proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 36.1 fb −1 . No significant excess is observed over the Standard Model predictions and limits are set on the production cross section times branching ratio of a heavy vector particle produced either in quark–antiquark fusion or through vector-boson fusion. Constraints are also obtained on the mass and couplings of a singly charged Higgs boson, in the Georgi–Machacek model, produced through ve…

PhysicsNuclear and High Energy PhysicsFusionParticle physicsLarge Hadron ColliderMuon010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyATLAS experimentElectronCollision7. Clean energy01 natural sciences0103 physical sciencesHiggs bosonHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsPhysics Letters B
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Observation of Electroweak Production of a Same-Sign W Boson Pair in Association with Two Jets in pp Collisions at s=13  TeV with the ATLAS Detector

2019

This Letter presents the observation and measurement of electroweak production of a same-sign W boson pair in association with two jets using 36.1  fb^{-1} of proton-proton collision data recorded at a center-of-mass energy of sqrt[s]=13  TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed in the detector fiducial phase-space region, defined by the presence of two same-sign leptons, electron or muon, and at least two jets with a large invariant mass and rapidity difference. A total of 122 candidate events are observed for a background expectation of 69±7 events, corresponding to an observed signal significance of 6.5 standard deviations. The measured fiducial s…

PhysicsParticle physicsLarge Hadron ColliderMuonElectroweak interactionGeneral Physics and Astronomy01 natural sciences0103 physical sciencesHigh Energy Physics::ExperimentRapidityInvariant massNuclear Experiment010306 general physicsEnergy (signal processing)BosonLeptonPhysical Review Letters
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Measurement of D⁎±, D± and Ds± meson production cross sections in pp collisions at s=7 TeV with the ATLAS detector

2016

The production of D*(+/-), D-+/- and D-S(+/-) charmed mesons has been measured with the ATLAS detector in pp collisions at,/7s = 7 TeV at the LHC, using data corresponding to an integrated luminosi ...

Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsMeson productionLarge Hadron ColliderMesonPhysics::Instrumentation and Detectors010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::PhenomenologyDeep inelastic scattering01 natural sciences7. Clean energymedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesTransverse momentummedicineHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsNuclear Physics B
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Combination of searches for heavy resonances decaying into bosonic and leptonic final states using 36  fb−1 of proton-proton collision data at s=13  …

2018

Searches for new heavy resonances decaying into different pairings of W, Z, or Higgs bosons, as well as dirffiffiffiectly into leptons, are presented using a data sample corresponding to 36.1 fb(-1 ...

Condensed Matter::Quantum GasesPhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsAtlas detectorHigh Energy Physics::PhenomenologyCollision01 natural sciencesGravitationRandall–Sundrum model0103 physical sciencesHiggs bosonHigh Energy Physics::Experiment010306 general physicsBosonLeptonPhysical Review D
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LAB-STEM CELLS

2012

AbstractsCancer ResearchOncologybusiness.industryMedicineNeurology (clinical)Stem cellbusinessCell biologyNeuro-Oncology
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Measurements of tt¯ differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at s=13  TeV usin…

2018

Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t (t) over bar system kinematic observables using proton-proton collis ...

Quantum chromodynamicsQuarkPhysicsTop quarkParticle physics010308 nuclear & particles physicsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryHadronStrong interactionPerturbative QCDObservable01 natural sciencesmedicine.anatomical_structureAtlas (anatomy)0103 physical sciencesPhysics::Atomic and Molecular ClustersmedicineHigh Energy Physics::Experiment010306 general physicsPhysical Review D
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Search for the standard model Higgs boson produced in association with a vector boson and decaying into a tau pair inppcollisions ats=8  TeVwith the …

2016

A search for the standard model Higgs boson produced in association with a vector boson with the decay H -> tau tau is presented. The data correspond to 20.3 fb(-1) of integrated luminosity from proton-proton collisions at root s = 8 TeV recorded by the ATLAS experiment at the LHC during 2012. The data agree with the background expectation, and 95% confidence-level upper limits are placed on the cross section of this process. The observed (expected) limit, expressed in terms of the signal strength mu= sigma/sigma(SM) for m(H) = 125 GeV, is mu < 5.6 (3.7). The measured value of the signal strength is mu = 2.3 +/- 1.6.

PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsAtlas (topology)Atlas detectorATLAS experimentSigma01 natural sciencesVector bosonNuclear physicsMassless particle0103 physical sciencesHiggs bosonHigh Energy Physics::Experiment010306 general physicsPhysical Review D
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Measurement of prompt photon production in sNN=8.16 TeV p + Pb collisions with ATLAS

2019

The inclusive production rates of isolated, prompt photons in p+Pb collisions at sNN=8.16 TeV are studied with the ATLAS detector at the Large Hadron Collider using a dataset with an integrated luminosity of 165 nb −1 recorded in 2016. The cross-section and nuclear modification factor RpPb are measured as a function of photon transverse energy from 20 GeV to 550 GeV and in three nucleon–nucleon centre-of-mass pseudorapidity regions, (−2.83,−2.02) , (−1.84,0.91) , and (1.09,1.90) . The cross-section and RpPb values are compared with the results of a next-to-leading-order perturbative QCD calculation, with and without nuclear parton distribution function modifications, and with expectations b…

PhysicsNuclear and High Energy PhysicsPhotonLarge Hadron Collider010308 nuclear & particles physicsScatteringPerturbative QCDParton7. Clean energy01 natural sciencesNuclear physicsDistribution functionPseudorapidity0103 physical sciencesHigh Energy Physics::ExperimentRapidityNuclear Experiment010306 general physicsPhysics Letters B
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Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period

2016

This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…

Большой адронный коллайдерbackground [beam]Physics::Instrumentation and DetectorsMonte Carlo methodPerformance of high energy physics detectorJet (particle physics)01 natural sciencesHigh Energy Physics - ExperimentSubatomär fysikHigh Energy Physics - Experiment (hep-ex)pressureSubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Instrumentationпротон-протонные столкновенияQCMathematical PhysicsPhysicseducation.field_of_studyPerformance of high energy physics detectorsLarge Hadron ColliderSettore FIS/01 - Fisica SperimentaleBeam-intensity monitors; Beam-line instrumentation (beam position and profile monitors; Bunch length monitors); Data analysis; Performance of high energy physics detectors; Instrumentation; Mathematical PhysicsData analysiMonte Carlo [numerical calculations]ATLASbuildingsBunchesCERN LHC CollBeam-intensity monitorBeam-line instrumentation (beam position and profile monitorComputingMethodologies_DOCUMENTANDTEXTPROCESSINGcolliding beams [p p]Particle Physics - ExperimentParticle physicsCiências Naturais::Ciências Físicas530 PhysicsAstrophysics::High Energy Astrophysical PhenomenaPopulation:Ciências Físicas [Ciências Naturais]Beam-line instrumentation (beam position and profile monitorsData analysisFOS: Physical sciencesgapCosmic ray530Bunch length monitors)Nuclear physicsATLAS LHC High Energy Physics510 Mathematics0103 physical sciencesBeam-line instrumentation (beam position and profile monitors;; beam-intensity monitors; bunch length monitors); Data analysis;; Performance of High Energy Physics Detectors; LEPHigh Energy Physicsddc:610010306 general physicseducationMuonScience & Technologycosmic radiation [muon]010308 nuclear & particles physicsFísicaLEPBeam-intensity monitorsghostcorrelationExperimental High Energy PhysicsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Data analysis; Performance of High Energy Physics DetectorsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors)Physics::Accelerator PhysicsPerformance of High Energy Physics DetectorsATLAS детекторBeam (structure)experimental resultsbeam-line instrumentation
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Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in sNN=5.02 TeV p+ Pb collisions measured by the AT…

2016

Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pbp+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of sqrt (SNN) = 5.01 TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3|η|<2.3 and transverse momentum between 0.1 GeV0.1 GeV and 22 GeV22 GeV in a dataset corresponding to an integrated luminosity of 1 μb−11 μb−1. The results are presented in the form of charged-particle nuclear modification factors, where the p+Pbp+Pb charged-particle multiplicities are compared between central and peripheral p+Pbp+Pb collisions as well as to charged-p…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderLuminosity (scattering theory)Proton010308 nuclear & particles physics01 natural sciencesCharged particleNuclear physicsPseudorapidity0103 physical sciencesRapidityNuclear Experiment010306 general physicsNucleonGlauberPhysics Letters B
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Observation of top-quark pair production in association with a photon and measurement of thett¯γproduction cross section inppcollisions ats=7TeV usin…

2015

A search is performed for top-quark pairs (t (t) over bar) produced together with a photon (gamma) with transverse energy greater than 20 GeV using a sample of t (t) over bar candidate events in final states with jets, missing transverse momentum, and one isolated electron or muon. The data set used corresponds to an integrated luminosity of 4.59 fb(-1) of proton-proton collisions at a center-of-mass energy of 7 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. In total, 140 and 222 t (t) over bar gamma candidate events are observed in the electron and muon channels, to be compared to the expectation of 79 +/- 26 and 120 +/- 39 non-t (t) over bar gamma background events,…

QuarkPhysicsNuclear and High Energy PhysicsTop quarkParticle physicsMuonLarge Hadron ColliderBranching fractionHigh Energy Physics::PhenomenologyParton7. Clean energyNuclear physicsPair productionHigh Energy Physics::ExperimentLeptonPhysical Review D
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Study of the material of the ATLAS inner detector for Run 2 of the LHC

2017

The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity root s = 13 TeV pp collision sample corresponding to around 2.0 nb(-1) collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic in…

Photondrift tubePhysics::Instrumentation and Detectors13000 GeV-cmsparticle identification: efficiencyCiencias FísicasPerformance of High Energy Physics Detector01 natural sciencesHigh Energy Physics - Experiment//purl.org/becyt/ford/1 [https]Subatomär fysikHigh Energy Physics - Experiment (hep-ex)Particle tracking detectorsSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]scattering [p p]tracking detectorGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)InstrumentationQCMathematical Physicsparticle identification [charged particle]Detector modelling and simulations I (interaction of radiation with matter interaction of photons with matter interaction of hadrons with matter etc)PhysicsLarge Hadron Colliderefficiency [particle identification]track data analysisSettore FIS/01 - Fisica SperimentaleATLAS experimentDetectorpixel [detector]interaction of photons with matterDetectorsMonte Carlo [numerical calculations]ATLASSample (graphics)interaction of hadrons with mattermedicine.anatomical_structureCERN LHC CollLHCcolliding beams [p p]numerical calculations: Monte CarloParticle Physics - ExperimentCIENCIAS NATURALES Y EXACTASp p: scatteringphoton: transition530 PhysicsCiências Naturais::Ciências FísicasInstrumentation:Ciências Físicas [Ciências Naturais]transition [photon]Detector modelling and simulations I (interaction of radiation with matterFOS: Physical sciences610charged particle: particle identificationAccelerator Physics and InstrumentationInteraction of photons with matterOpticsAtlas (anatomy)[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciencesmedicinedetector: pixelInteraction of hadrons with matterHigh Energy Physicsddc:610structure010306 general physicsCiencias Exactasetc)Science & TechnologyPixelhep-ex010308 nuclear & particles physicsbusiness.industryinteraction of radiation with matterFísicasiliconAcceleratorfysik och instrumenteringDetector modelling and simulations I (interaction of radiation with matter interaction of photons with matter interaction of hadrons with matter etc); Particle tracking detectors; Performance of High Energy Physics Detectors; Instrumentation; Mathematical Physics//purl.org/becyt/ford/1.3 [https]tracksDetector modelling and simulationsParticle tracking detectorAstronomíarapidityExperimental High Energy PhysicsPerformance of High Energy Physics DetectorsHigh Energy Physics::Experimenttransition radiationbusinessDetector modelling and simulations I (interaction of radiation with matter interaction of photons with matter interaction of hadrons with matter etc)p p: colliding beamsexperimental results
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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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Measurement of photon?jet transverse momentum correlations in 5.02 TeV Pb + Pb and pp collisions with ATLAS

2019

Jets created in association with a photon can be used as a calibrated probe to study energy loss in the medium created in nuclear collisions. Measurements of the transverse momentum balance between isolated photons and inclusive jets are presented using integrated luminosities of 0.49 nb−1 of Pb + Pb collision data at TeV and 25 pb−1 of pp collision data at TeV recorded with the ATLAS detector at the LHC. Photons with transverse momentum GeV and are paired with all jets in the event that have GeV and pseudorapidity . The transverse momentum balance given by the jet-to-photon ratio, , is measured for pairs with azimuthal opening angle . Distributions of the per-photon jet yield as a function…

PhotonLEAD-LEAD COLLISIONS; PP COLLISIONS; ROOT-S(NN)=2.76 TEV; DEPENDENCEheavy ion: scatteringPhysics::Instrumentation and DetectorsMonte Carlo methodRelativistic heavy ion collisionsphoton–jet transverse momentum correlationsnucl-ex01 natural sciencesHigh Energy Physics - ExperimentDouble Drell–YanSubatomär fysikHigh Energy Physics - Experiment (hep-ex)Double parton-scatteringDEPENDENCESubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]luminositiesCollisions ROOT-S(NN)=2.76 TEVNuclear Experiment (nucl-ex)Nuclear Experimentdimension: 2GeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)Nuclear ExperimentMonte CarloComputingMilieux_MISCELLANEOUSQCComputer Science::DatabasesPhysicsJet (fluid)Large Hadron ColliderSettore FIS/01 - Fisica Sperimentalephotonyield [jet]transverse momentum: correlationATLASlcsh:QC1-999:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]medicine.anatomical_structureCERN LHC Coll2 [dimension]nuclear matterLHCLEAD-LEAD COLLISIONSjet: yieldParticle Physics - ExperimentNuclear and High Energy Physicsp p: scatteringenergy loss [parton]530 PhysicsCiências Naturais::Ciências FísicasAstrophysics::High Energy Astrophysical Phenomena:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesddc:500.2LHC ATLAS High Energy Physics[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]jets Nuclear physicsAtlas (anatomy)0103 physical sciencesCalibrationmedicineddc:530RapidityNuclear Physics - Experiment5020 GeV-cms/nucleonHigh Energy Physics010306 general physicsCiencias ExactasFour-lepton productionHiggs golden decay channelPP COLLISIONSScience & Technology010308 nuclear & particles physicshep-exHigh Energy Physics::Phenomenologynucleus:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]FísicaNuclear mattercalibrationjet quenching* Automatic Keywords *rapidityExperimental High Energy PhysicsHigh Energy Physics::Experimentparton: energy losscorrelation [transverse momentum]lcsh:Physicsexperimental resultsPhysics Letters B
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Search for dark matter in events with heavy quarks and missing transverse momentum in [Formula: see text] collisions with the ATLAS detector.

2014

This article reports on a search for dark matter pair production in association with bottom or top quarks in \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$20.3 \mathrm {~fb}^{-1}$$\end{document}20.3fb-1 of \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$pp$$\end{document}pp collisions collected at \documentclass[12pt]{minimal} \use…

Regular Article - Experimental PhysicsThe European physical journal. C, Particles and fields
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Performance of $b$-Jet Identification in the ATLAS Experiment

2016

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT an…

detector-systems performancePerformance of High Energy Physics Detectorsecondary [vertex]Elementary particle01 natural sciencesPARTONlaw.inventionSubatomär fysikCHANNELcluster findingscattering [p p]impact parameterGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)протон-протонные столкновенияQBLarge detector-systems performanceHigh energy physics detectorLarge Hadron ColliderLarge detector systems for particle and astroparticle physics; Large detector-systems performance; Pattern recognition cluster finding calibration and fitting methods; Performance of High Energy Physics Detectors; Instrumentation; Mathematical Physicstrack data analysisQUARK PAIR PRODUCTIONbottom [jet]CERN LHC CollPattern recognition cluster finding calibration and fitting method7000 GeV-cmscolliding beams [p p]performanceHADRONIC COLLISIONSCiências Naturais::Ciências FísicasLarge detectorFitting methodHigh energy physicATLAS LHC High Energy Physics510 MathematicsmuonDISTRIBUTIONSUncertainty analysis Astroparticle physicHigh Energy Physics010306 general physicsSystematic uncertainties AlgorithmsAstroparticle physicsCalibration and fitting methodsScience & Technology010308 nuclear & particles physicsLarge detector systems for particle and astroparticle physicsParticle acceleratorRangingPerformance of High Energy PhysicsCOLLIDERScorrelationExperimental High Energy PhysicsPerformance of High Energy Physics DetectorshadronATLAS детекторБольшой адронный коллайдерcharm [jet]Elementary particleHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)lawSubatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Detectors and Experimental TechniquesInstrumentationUncertainty analysisMathematical PhysicsPhysicsPattern recognition cluster finding calibration and fitting methods4. EducationATLAS experimentSettore FIS/01 - Fisica SperimentaleDetectorsflavor [jet]calibration and fitting methodsATLASLarge Hadron ColliderLarge detector systems for particle and astroparticle physics; Large; detector-systems performance; Pattern recognition cluster finding; calibration and fitting methods; Performance of High Energy Physics; Detectors; PRODUCTION CROSS-SECTION; QUARK PAIR PRODUCTION; ROOT-S=7 TEV; PARTON; DISTRIBUTIONS; HADRONIC COLLISIONS; MATRIX-ELEMENTS; LHC; COLLIDERS; DETECTOR; CHANNEL8. Economic growthCalibrationparticle identification [bottom]LHCImpact parameterParticle Physics - ExperimentParticle physicsdata analysis method530 Physics:Ciências Físicas [Ciências Naturais]FOS: Physical sciences530MATRIX-ELEMENTSparticle identification [charm]on-line [trigger]Pattern recognition0103 physical sciencesComplementary methodddc:610DETECTORROOT-S=7 TEVCluster findingFísicaLarge detector systems for particle and astroparticle physics; Large detector-systems performance; Pattern recognition cluster finding calibration and fitting methods; Performance of High Energy Physics DetectorsPattern recognition systemcalibrationtracksPRODUCTION CROSS-SECTIONefficiencyHadronLarge detector systems for particle and astroparticle physicLargeHigh Energy Physics::ExperimentStatistical correlationstatisticalexperimental results
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Erratum to: Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition) (Autophagy, 12, 1, 1-222, 10.1080/15548627.201…

2016

non presente

Molecular Biology; Cell BiologyCell BiologySettore BIO/06 - Anatomia Comparata E CitologiaMolecular Biology
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