Search for an Invisibly Decaying Higgs Boson or Dark Matter Candidates Produced in Association with a Z Boson in pp Collisions at √s=13 TeV with the ATLAS Detector

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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.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2018-09-27T14:42:40Z
dc.date.available2018-09-27T14:42:40Z
dc.date.created2017-11-26en_US
dc.date.issued2018-09-27
dc.descriptionIncludes supplementary materialen_US
dc.description.abstractA search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a leptonically decaying Z boson in proton-proton collisions at √s = 13 TeV is presented. This search uses 36.1 fb⁻¹ of data collected by the ATLAS experiment at the Large Hadron Collider. No significant deviation from the expectation of the Standard Model backgrounds is observed. Assuming the Standard Model ZH production cross-section, an observed (expected) upper limit of 67% (39%) at the 95% confidence level is set on the branching ratio of invisible decays of the Higgs boson with mass m(H) = 125 GeV. The corresponding limits on the production cross-section of the ZH process with the invisible Higgs boson decays are also presented. Furthermore, exclusion limits on the dark matter candidate and mediator masses are reported in the framework of simplified dark matter models.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.identifier.bibliographicCitationAaboud, M., G. Aad, B. Abbott, O. Abdinov, et al. 2018. "Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector." Physics Letters B 776, doi:10.1016/j.physletb.2017.11.049en_US
dc.identifier.issn0370-2693en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6151
dc.identifier.volume776en_US
dc.language.isoenen_US
dc.publisherElsevier Science B.V.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.physletb.2017.11.049
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2017 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourcePhysics Letters B
dc.subjectDark matter (Astronomy)en_US
dc.subjectLarge Hadron Collider (France and Switzerland)en_US
dc.subjectHiggs bosonsen_US
dc.subjectProton-proton interactionsen_US
dc.subjectZ bosonsen_US
dc.subjectStandard model (Nuclear physics)en_US
dc.subjectBranching ratios (Nuclear physics)en_US
dc.titleSearch for an Invisibly Decaying Higgs Boson or Dark Matter Candidates Produced in Association with a Z Boson in pp Collisions at √s=13 TeV with the ATLAS Detectoren_US
dc.type.genrearticleen_US

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Izen, Joseph M.