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Search for top quark decays t → qH with H → γγ using the ATLAS detector

dc.contributor.authorBuanes, Trygveeng
dc.contributor.authorDale, Ørjaneng
dc.contributor.authorEigen, Geraldeng
dc.contributor.authorKastanas, Alexeng
dc.contributor.authorLiebig, Wolfgangeng
dc.contributor.authorLipniacka, Annaeng
dc.contributor.authorMartin dit Latour, Bertrandeng
dc.contributor.authorRosendahl, Peter Lundgaardeng
dc.contributor.authorSandaker, Heidieng
dc.contributor.authorSjursen, Therese B.eng
dc.contributor.authorSmestad, Lillianeng
dc.contributor.authorStugu, Bjarneeng
dc.contributor.authorUgland, Mareneng
dc.contributor.authorBugge, Larseng
dc.contributor.authorBugge, Magnar Kopangeneng
dc.contributor.authorCameron, David Gordoneng
dc.contributor.authorCatmore, James Richardeng
dc.contributor.authorCzyczula, Zofiaeng
dc.contributor.authorGjelsten, Børge Kileeng
dc.contributor.authorGramstad, Eirikeng
dc.contributor.authorOuld-Saada, Farideng
dc.contributor.authorPajchel, Katarinaeng
dc.contributor.authorPedersen, Maikeneng
dc.contributor.authorPylypchenko, Yuriyeng
dc.contributor.authorRead, Alexander Lincolneng
dc.contributor.authorRøhne, Ole Myreneng
dc.contributor.authorStapnes, Steinareng
dc.contributor.authorStrandlie, Areeng
dc.contributor.authorAad, Georgeseng
dc.contributor.authorAbajyan, Tatevikeng
dc.contributor.authorAbbott, Bradeng
dc.contributor.authorAbdallah, Jalaleng
dc.contributor.authorAbdel Khalek, Samaheng
dc.contributor.authorAbdinov, Ovsat Bahram oglueng
dc.contributor.authorAben, Rosemarieeng
dc.contributor.authorAbi, Babakeng
dc.contributor.authorAbolins, Mariseng
dc.contributor.authorAbouZeid, Hasseng
dc.contributor.authorAbramowicz, Halinaeng
dc.contributor.authorAbreu, Hensoeng
dc.contributor.authorAbreu, Rômulo F.eng
dc.contributor.authorAcerbi, Emilioeng
dc.contributor.authorAdamczyk, Leszekeng
dc.contributor.authorAdams, Davideng
dc.contributor.authorAdelman, Jareedeng
dc.contributor.authorAdomeit, Stefanieeng
dc.contributor.authorAdye, Timeng
dc.contributor.authorAgatonovic-Jovin, Tatjanaeng
dc.contributor.authorAguilar Saavedra, Juan Antonioeng
dc.contributor.authorAgustoni, Marcoeng
dc.contributor.authorATLAS, Collaborationeng
dc.date.accessioned2015-03-16T14:01:33Z
dc.date.available2015-03-16T14:01:33Z
dc.date.issued2014-06-03eng
dc.identifier.issn1029-8479en_US
dc.identifier.urihttps://hdl.handle.net/1956/9540
dc.description.abstractA search is performed for flavour-changing neutral currents in the decay of a top quark to an up-type (c, u) quark and a Higgs boson, where the Higgs boson decays to two photons. The proton-proton collision data set used corresponds to 4.7 fb−1 at s√ = 7TeV and 20.3fb−1 at s√ = 8TeV collected by the ATLAS experiment at the LHC. Top quark pair events are searched for in which one top quark decays to qH and the other decays to bW. Both the hadronic and the leptonic decay modes of the W boson are used. No significant signal is observed and an upper limit is set on the t → qH branching ratio of 0.79 at the 95% confidence level. The corresponding limit on the tqH coupling combination √λ2tcH+λ2tuH is 0.17.en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.subjectHadron-Hadron Scatteringeng
dc.titleSearch for top quark decays t → qH with H → γγ using the ATLAS detectoren_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-03-04T13:28:54Zen_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright CERN, for the benefit of the ATLAS Collaborationen_US
dc.source.articlenumber8
dc.identifier.doihttps://doi.org/10.1007/jhep06(2014)008
dc.identifier.cristin1149729
dc.source.journalJournal of High Energy Physics
dc.source.406
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431en_US
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431nob


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