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Title
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Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at =13 TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| A search for flavor-changing neutral currents (FCNC) in events with the top quark and the Higgs boson is presented. The Higgs boson decay to a pair of b quarks is considered. The data sample corresponds to an integrated luminosity of 35.9 fb(-1) recorded by the CMS experiment at the LHC in proton-proton collisions at root s = 13TeV. Two channels are considered: single top quark FCNC production in association with the Higgs boson (pp -> tH), and top quark pair production with FCNC decay of the top quark (t -> qH). Final states with one isolated lepton and at least three reconstructed jets, among which at least two are associated with b quarks, are studied. No significant deviation is observed from the predicted background. Observed (expected) upper limits at 95% confidence level are set on the branching fractions of top quark decays, B(t -> uH) < 0.47% (0.34%) and B(t -> cH) < 0.47% (0.44%), assuming a single nonzero FCNC coupling. |
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Language
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English
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Source (journal)
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Journal of high energy physics. - Bristol
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Publication
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Bristol
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2018
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ISSN
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1126-6708
1029-8479
[online]
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DOI
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10.1007/JHEP06(2018)102
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Volume/pages
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6
(2018)
, 37 p.
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Article Reference
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102
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ISI
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000437348700001
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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