Searches for the Zγ Decay Mode of the Higgs Boson and for New High-Mass Resonances in pp Collisions at √s=13 TeV with the ATLAS Detector

dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.authorAaboud, M.en_US
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAbeloos, B.en_US
dc.contributor.authorAbidi, S. H.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorIzen, Joseph M.
dc.contributor.authorMeirose, Bernhard
dc.contributor.authorReeves, Kendall
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2018-09-24T15:05:54Z
dc.date.available2018-09-24T15:05:54Z
dc.date.created2017-10-17en_US
dc.date.issued2017-10-17en_US
dc.description.abstractThis article presents searches for the Zγ decay of the Higgs boson and for narrow high-mass resonances decaying to Zγ, exploiting Z boson decays to pairs of electrons or muons. The data analysis uses 36.1 fb⁻¹ of pp collisions at √s=13 recorded by the ATLAS detector at the CERN Large Hadron Collider. The data are found to be consistent with the expected Standard Model background. The observed (expected — assuming Standard Model pp → H → Zγ production and decay) upper limit on the production cross section times the branching ratio for pp → H → Zγ is 6.6. (5.2) times the Standard Model prediction at the 95% confidence level for a Higgs boson mass of 125.09 GeV. In addition, upper limits are set on the production cross section times the branching ratio as a function of the mass of a narrow resonance between 250 GeV and 2.4 TeV, assuming spin-0 resonances produced via gluon-gluon fusion, and spin-2 resonances produced via gluon-gluon or quark-antiquark initial states. For high-mass spin-0 resonances, the observed (expected) limits vary between 88 fb (61 fb) and 2.8 fb (2.7 fb) for the mass range from 250 GeV to 2.4 TeV at the 95% confidence level.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, et al. 2017. "Searches for the Zγ decay mode of the Higgs boson and for new high-mass resonances in pp collisions at √s=13 TeV with the ATLAS detector." Journal of High Energy Physics 10, doi:10.1007/JHEP10(2017)112en_US
dc.identifier.issn1126-6708en_US
dc.identifier.issue10en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6092
dc.identifier.volume2017en_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.relation.urihttp://dx.doi.org/10.1007/JHEP10(2017)112
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2017 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceJournal of High Energy Physics
dc.subjectHadrons--Scatteringen_US
dc.subjectHiggs bosonsen_US
dc.subjectProton-proton interactionsen_US
dc.subjectStandard model (Nuclear physics)en_US
dc.subjectBranching ratios (Nuclear physics)en_US
dc.subjectGluonsen_US
dc.subjectResonanceen_US
dc.titleSearches for the Zγ Decay Mode of the Higgs Boson and for New High-Mass Resonances in pp Collisions at √s=13 TeV with the ATLAS Detectoren_US
dc.type.genrearticleen_US

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