Search results for "Higgs particle: branching ratio"

showing 2 items of 2 documents

Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment

2019

Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H → invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1 fb⁻¹ of pp collisions at a center-of-mass energy of √s = 13 TeV at the LHC. In combination with the results at √s = 7 and 8 TeV, an exclusion limit on the H → invisible branching ratio of 0.26(0.17-0.05+0.07) at 95% confidence level is observed (expected).

WIMP nucleon: scatteringMATÉRIA ESCURA13000 GeV-cmsGeneral Physics and Astronomy01 natural sciencesWIMP: dark matterVector bosonHigh Energy Physics - Experimentdark matter [WIMP]Subatomär fysikHiggs particle: hadroproductionHigh Energy Physics - Experiment (hep-ex)vector boson: fusionSubatomic Physicsscattering [p p]S126.7[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]GeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)Z0: hadronic decayvector boson: associated productionPhysicsS030DMPLarge Hadron Colliderhadronic decay [Z0]ATLAS experimentSettore FIS/01 - Fisica SperimentaleConfidence levelsBranching ratioATLAS:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]Vector bosonmedicine.anatomical_structureThe standard modelCERN LHC CollHiggs particle: branching ratio: upper limitHiggs bosonLHCgamma-ray excesscolliding beams [p p]Particle Physics - ExperimentS126:Desig=7Particle physicsp p: scattering530 PhysicsCiências Naturais::Ciências FísicasHiggs bosonDark matter:Ciências Físicas [Ciências Naturais]FOS: Physical sciencesATLAS experimentHiggs particle: invisible decaybranching ratio: upper limit [Higgs particle]LHC ATLAS High Energy Physicsddc:500.2fusion [vector boson]530Standard ModelmodelsParticle dark matterAtlas (anatomy)0103 physical sciencesmedicineDark matterddc:530High Energy Physics010306 general physicshadronic decay [W]Ciencias ExactasATLAS CollaborationW: hadronic decayScience & TechnologyBranching fractionscattering [WIMP nucleon]hep-exATLAS detectorsHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]Físicaleptonic decay [Z0]Higgs Boson decayInvisible decaysExperimental High Energy PhysicsZ0: leptonic decayExtensions of Higgs sectorDark matter particlesElementary Particles and Fieldshadroproduction [Higgs particle]associated production [vector boson]High Energy Physics::ExperimentHadron-hadron collisionsstatisticalp p: colliding beamsinvisible decay [Higgs particle]experimental results

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Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector

2018

Physics letters / B 784, 173 - 191 (2018). doi:10.1016/j.physletb.2018.07.035

associated production [Higgs particle]Yukawa [coupling]13000 GeV-cms01 natural sciencesStandard deviationSubatomär fysikscattering [p p]Z0: pair productionCollisionsmeasured [total cross section]протон-протонные столкновенияGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)ComputingMilieux_MISCELLANEOUSLHC; Higgs; Top-QuarkLarge Hadron ColliderQ007THXlcsh:QC1-999Top-Quark:Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP]pair production [Z0]CERN LHC CollHiggs bosonХиггса бозонcolliding beams [p p]top: pair productionHiggs particle: decay modesp p: scatteringmass spectrum: (4lepton)Ciências Naturais::Ciências FísicasAstrophysics::High Energy Astrophysical PhenomenaSTANDARD MODELddc:500.2SEARCHddc:530High Energy Physics010306 general physicstop quarktwo-photon [mass spectrum]Science & TechnologyHiggs particle: coupling010308 nuclear & particles physics(4lepton) [mass spectrum]HIGGSExperimental High Energy PhysicsATLAS детекторp p: colliding beamslcsh:Physicscoupling: Yukawamass spectrum: two-photonHiggsTop quarkHiggs Top LHC observationБольшой адронный коллайдерAtlas detectorCiencias Físicasbranching ratio [Higgs particle]pair production [top]High Energy Physics - Experiment//purl.org/becyt/ford/1 [https]W: pair productionHigh Energy Physics - Experiment (hep-ex)Subatomic Physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Physicsscattering | p p: colliding beams | top: pair production | Higgs particle: associated production | Higgs particle: decay modes | bottom: pair production | W: pair production | Z0: pair production | tau: pair production | photon: pair production | Higgs particle: coupling | coupling: Yukawa | CERN LHC Coll | ATLAS | mass spectrum: two-photon | mass spectrum: (4lepton) | Higgs particle: branching ratio | total cross section: measured | experimental results | 13000 GeV-cms [p p]proton–proton collisionstau: pair productionSettore FIS/01 - Fisica SperimentaleTOPATLASpair production [bottom]pair production [tau]S126STHpair production [W]LHCphoton: pair productionCIENCIAS NATURALES Y EXACTASParticle Physics - Experimentpair production [photon]jetsParticle physicsNuclear and High Energy Physicscoupling [Higgs particle]Higgs boson530 Physics:Ciências Físicas [Ciências Naturais]decay modes [Higgs particle]FOS: Physical sciencesbottom: pair productionFísica de Partículas y Campos5300103 physical sciencesHigh Energy Physics::Phenomenology:Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP]//purl.org/becyt/ford/1.3 [https]Higgs particle: associated productionHiggs particle: branching ratiototal cross section: measuredHigh Energy Physics::ExperimentHadron-hadron collisionsexperimental results

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