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

(CMS Collaboration)

Research output: Contribution to journalArticle

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.

Original languageEnglish
Article number092005
JournalPhysical Review D
Volume99
Issue number9
DOIs
Publication statusPublished - 21 May 2019

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Higgs bosons
signatures
quarks
collisions
protons
decay
center of mass
leptons
bosons
luminosity
cross sections
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at s =13 TeV. / (CMS Collaboration).

In: Physical Review D, Vol. 99, No. 9, 092005, 21.05.2019.

Research output: Contribution to journalArticle

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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.",
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AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

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AU - Ivanov, Y.

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