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.

Sirunyan A.M., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., et al. (2019). Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at s =13 TeV. PHYSICAL REVIEW D, 99(9), 1-29 [10.1103/PhysRevD.99.092005].

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

Battilana C.;Bonacorsi D.;Borgonovi L.;Braibant-Giacomelli S.;Campanini R.;Capiluppi P.;Castro A.;Chhibra S. S.;Codispoti G.;Cuffiani M.;Fanfani A.;Fontanesi E.;Guiducci L.;Navarria F. L.;Primavera F.;Rovelli T.;Siroli G. P.;
2019

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.
2019
Sirunyan A.M., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., et al. (2019). Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at s =13 TeV. PHYSICAL REVIEW D, 99(9), 1-29 [10.1103/PhysRevD.99.092005].
Sirunyan A.M.; Tumasyan A.; Adam W.; Ambrogi F.; Asilar E.; Bergauer T.; Brandstetter J.; Dragicevic M.; Ero J.; Escalante Del Valle A.; Flechl M.; Fr...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/720486
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