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Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at √s = 13 TeV
Sirunyan, A. M. Sanders, Stephen J. CMS Collaboration
Sirunyan, A. M.
Sanders, Stephen J.
CMS Collaboration
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Abstract
A search is presented for the production of a Higgs boson in association with a single top quark, based on data collected in 2016 by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV, which corresponds to an integrated luminosity of 35.9 fb−1. The production cross section for this process is highly sensitive to the absolute values of the top quark Yukawa coupling, yt; the Higgs boson coupling to vector bosons, gHVV; and, uniquely, their relative sign. Analyses using multilepton signatures, targeting H → WW, H → ττ, and H → ZZ decay modes, and signatures with a single lepton and a b¯b pair, targeting the H → b¯b decay, are combined with a reinterpretation of a measurement in the H → γγ channel to constrain yt. For a standard model–like value of gHVV, the data favor positive values of yt and exclude values of yt below about −0.9yt^SM.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Date
2019-05-21
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American Physical Society
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A. M. Sirunyan et al., "Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at √s = 13 TeV", Phys. Rev. D 99, 092005, 21 May 2019, American Physical Society, https://doi.org/10.1103/PhysRevD.99.092005