Search for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Bottom Quarks in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector

dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbolins, M.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2017-11-10T23:18:14Z
dc.date.available2017-11-10T23:18:14Z
dc.date.created2016-04-18en_US
dc.date.issued2016-04-18en_US
dc.description.abstractThis article reports on a search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks, using data from 20.3 fb⁻¹ of pp collisions at a center-of-mass energy of 8 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb̅ system with either a pair of small-radius jets, or a single large-radius jet with substructure. The observed data are found to be consistent with the expected Standard Model backgrounds. Model-independent upper limits are placed on the visible cross sections for events with a Higgs boson decaying into bb̅ and large missing transverse momentum with thresholds ranging from 150 to 400 GeV. Results are interpreted using a simplified model with a Z′ gauge boson decaying into different Higgs bosons predicted in a two-Higgs-doublet model, of which the heavy pseudoscalar Higgs decays into a pair of dark matter particles. Exclusion limits are also presented for the mass scales of various effective field theory operators that describe the interaction between dark matter particles and the Higgs boson.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2016. "Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in pp collisions at √s̅ = 8 TeV with the ATLAS detector." Physical Review D 93(7), doi:10.1103/PhysRevD.93.072007en_US
dc.identifier.issn2470-0010en_US
dc.identifier.issue7en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5581
dc.identifier.volume93en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.93.072007
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights©2016 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourcePhysical Review D
dc.subjectHadron collidersen_US
dc.subjectPair productionen_US
dc.subjectParton distributionsen_US
dc.subjectLarge Hadron Collider (France and Switzerland)en_US
dc.subjectQuantum chromodynamicsen_US
dc.subjectConstraints (Physics)en_US
dc.subjectParticles (Nuclear physics)en_US
dc.subjectHiggs bosonsen_US
dc.subjectProton-proton interactionsen_US
dc.titleSearch for Dark Matter Produced in Association with a Higgs Boson Decaying to Two Bottom Quarks in pp Collisions at √s̅ = 8 TeV with the ATLAS Detectoren_US
dc.type.genrearticleen_US

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