Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at root s=13 TeV



Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Eroe, J
et al (show 2272 more authors) (2019) Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at root s=13 TeV. PHYSICAL REVIEW D, 99 (9). 092005-.

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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 bb pair, targeting the H→bb 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 -0.9ytSM.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 05 Dec 2019 16:38
Last Modified: 17 Mar 2024 04:17
DOI: 10.1103/PhysRevD.99.092005
Open Access URL: https://doi.org/10.1103/PhysRevD.99.092005
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3065021