Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at √s=8 TeV

The CMS collaboration

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A search for charged Higgs boson decaying to a charm and a bottom quark (H + → c b ¯) is performed using 19.7 fb −1 of pp collision data at s=8 TeV. The production mechanism investigated in this search is t t ¯ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to c b ¯ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8–0.5% are set on the branching fraction ℬ(t → H + b), assuming ℬ(H + → c b ¯) = 1.0 and ℬ(t → H + b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV.[Figure not available: see fulltext.].

Original languageEnglish
Article number115
JournalJournal of High Energy Physics
Volume2018
Issue number11
DOIs
Publication statusPublished - 1 Nov 2018

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Higgs bosons
quarks
collisions
protons
decay
leptons
pair production
transverse momentum
muons
confidence
kinematics
neutrinos
electrons

Keywords

  • Hadron-Hadron scattering (experiments)
  • Higgs physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at √s=8 TeV. / The CMS collaboration.

In: Journal of High Energy Physics, Vol. 2018, No. 11, 115, 01.11.2018.

Research output: Contribution to journalArticle

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abstract = "A search for charged Higgs boson decaying to a charm and a bottom quark (H + → c b ¯) is performed using 19.7 fb −1 of pp collision data at s=8 TeV. The production mechanism investigated in this search is t t ¯ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to c b ¯ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95{\%} confidence level of 0.8–0.5{\%} are set on the branching fraction ℬ(t → H + b), assuming ℬ(H + → c b ¯) = 1.0 and ℬ(t → H + b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV.[Figure not available: see fulltext.].",
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author = "{The CMS collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and {Escalante Del Valle}, A. and M. Flechl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, {C. E.} and M. Zarucki and V. Chekhovsky and V. Mossolov and {Suarez Gonzalez}, J. and {De Wolf}, {E. A.} and {Di Croce}, D. and V. Danilov and Kim, {J. H.} and Kim, {J. H.} and Kim, {J. H.} and M. Gavrilenko and A. Zarubin and Y. Ivanov and V. Kim and V. Oreshkin and S. Vavilov and V. Popov and A. Babaev and S. Baidali",
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AU - Ghete, V. M.

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AU - Spitzbart, D.

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AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Danilov, V.

AU - Kim, J. H.

AU - Kim, J. H.

AU - Kim, J. H.

AU - Gavrilenko, M.

AU - Zarubin, A.

AU - Ivanov, Y.

AU - Kim, V.

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N2 - A search for charged Higgs boson decaying to a charm and a bottom quark (H + → c b ¯) is performed using 19.7 fb −1 of pp collision data at s=8 TeV. The production mechanism investigated in this search is t t ¯ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to c b ¯ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8–0.5% are set on the branching fraction ℬ(t → H + b), assuming ℬ(H + → c b ¯) = 1.0 and ℬ(t → H + b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV.[Figure not available: see fulltext.].

AB - A search for charged Higgs boson decaying to a charm and a bottom quark (H + → c b ¯) is performed using 19.7 fb −1 of pp collision data at s=8 TeV. The production mechanism investigated in this search is t t ¯ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to c b ¯ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8–0.5% are set on the branching fraction ℬ(t → H + b), assuming ℬ(H + → c b ¯) = 1.0 and ℬ(t → H + b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV.[Figure not available: see fulltext.].

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