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Title: Search for a charged Higgs boson in pp collisions at √s = 8 TeV

Abstract

Our search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fb -1 collected with the CMS detector in proton-proton collisions at √s=8,TeV. The charged Higgs boson is searched for in top quark decays for m H± < m t - m b, and in the direct production pp → t(b)H ± for m H± > m t - m b. The H ± → τ ± ν τ and H ± → tb decay modes in the final states τ h+jets, μτ h, ℓ+jets, and ℓℓ’ (ℓ =e, μ) are considered in the search. No signal is observed and 95% confidence level upper limits are set on the charged Higgs boson production. Furthermore, a model-independent upper limit on the product branching fraction B(t→H±b)B(H±→τ±ντ)=1.2-0.15% is obtained in the mass range m = 80–160 GeV, while the upper limit on the cross section times branching fraction σ(pp→t(b)H±)B(H ±→ τ ±ν τ)=0.38-0.025 pb is set in the mass range m H+ = 180–600 GeV. Here, σ(pp → t(b)H±) stands for the cross section sum σ(pp→t¯(b)H+)+σ(pp→t(b¯)H-). Assuming B(H ±→tb)=1, an upper limit on σ(pp → t(b)H±) of 2.0–0.13 pb is setmore » for m = 180–600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the m H ±-tan β parameter space in different MSSM benchmark scenarios.« less

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1221364
Report Number(s):
FERMILAB-PUB-15-377-CMS
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1508.07774
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2015; Journal Issue: 11; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Hadron-Hadron Scattering; IT & software; telecommunications; Higgs physics; supersymmetry

Citation Formats

Khachatryan, Vardan. Search for a charged Higgs boson in pp collisions at √s = 8 TeV. United States: N. p., 2015. Web. doi:10.1007/JHEP11(2015)018.
Khachatryan, Vardan. Search for a charged Higgs boson in pp collisions at √s = 8 TeV. United States. doi:10.1007/JHEP11(2015)018.
Khachatryan, Vardan. Wed . "Search for a charged Higgs boson in pp collisions at √s = 8 TeV". United States. doi:10.1007/JHEP11(2015)018. https://www.osti.gov/servlets/purl/1221364.
@article{osti_1221364,
title = {Search for a charged Higgs boson in pp collisions at √s = 8 TeV},
author = {Khachatryan, Vardan},
abstractNote = {Our search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fb-1 collected with the CMS detector in proton-proton collisions at √s=8,TeV. The charged Higgs boson is searched for in top quark decays for m H± < m t - m b, and in the direct production pp → t(b)H± for m H± > m t - m b. The H± → τ ± ν τ and H± → tb decay modes in the final states τ h+jets, μτ h, ℓ+jets, and ℓℓ’ (ℓ =e, μ) are considered in the search. No signal is observed and 95% confidence level upper limits are set on the charged Higgs boson production. Furthermore, a model-independent upper limit on the product branching fraction B(t→H±b)B(H±→τ±ντ)=1.2-0.15% is obtained in the mass range m H± = 80–160 GeV, while the upper limit on the cross section times branching fraction σ(pp→t(b)H±)B(H±→ τ±ντ)=0.38-0.025 pb is set in the mass range m H+ = 180–600 GeV. Here, σ(pp → t(b)H±) stands for the cross section sum σ(pp→t¯(b)H+)+σ(pp→t(b¯)H-). Assuming B(H±→tb)=1, an upper limit on σ(pp → t(b)H±) of 2.0–0.13 pb is set for m H± = 180–600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the m H±-tan β parameter space in different MSSM benchmark scenarios.},
doi = {10.1007/JHEP11(2015)018},
journal = {Journal of High Energy Physics (Online)},
number = 11,
volume = 2015,
place = {United States},
year = {2015},
month = {11}
}

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    Works referencing / citing this record:

    Top++: A program for the calculation of the top-pair cross-section at hadron colliders
    journal, November 2014


    Asymptotic formulae for likelihood-based tests of new physics
    journal, February 2011


    Measurement of differential top-quark-pair production cross sections in pp collisions at $\sqrt{s} = 7\ \mathrm{TeV}$
    journal, March 2013


    Evidence for the spin-0 nature of the Higgs boson using ATLAS data
    journal, October 2013


    Supersymmetry and weak, electromagnetic and strong interactions
    journal, September 1976


    FastJet user manual: (for version 3.0.2)
    journal, March 2012


    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC
    journal, October 2013


    MSSM Higgs boson searches at the LHC: benchmark scenarios after the discovery of a Higgs-like particle
    journal, September 2013


    Search for charged Higgs bosons in e+e− collisions at $\sqrt{s}=189\mbox{--}209\ \mbox{GeV}$
    journal, July 2012


    Measurement of the t t ¯ production cross section in pp collisions at s = 8 TeV in dilepton final states containing one τ lepton
    journal, December 2014


    The anti- k t jet clustering algorithm
    journal, April 2008


    Softly broken supersymmetry and SU(5)
    journal, December 1981


    Resummation of tan β-enhanced supersymmetric loop corrections beyond the decoupling limit
    journal, October 2009


    Search for charged Higgs bosons at LEP
    journal, November 2003


    Standard model Higgs-boson branching ratios with uncertainties
    journal, September 2011


    Matching NLO QCD computations with parton shower simulations: the POWHEG method
    journal, November 2007


    Presentation of search results: the CL s technique
    journal, September 2002


    Measurement of the cross section ratio σ t t ¯ b b ¯ / σ t t ¯ jj in p p collisions at s = 8 TeV
    journal, June 2015


    Parton distributions with LHC data
    journal, February 2013


    NLO single-top production matched with shower in POWHEG: s - and t -channel contributions
    journal, September 2009


    A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
    journal, November 2004


    Search for a charged Higgs boson in pp collisions at s√=8 TeV
    March 2016


    HATHOR – HAdronic Top and Heavy quarks crOss section calculatoR
    journal, April 2011


    Measurement of the ratio B ( t W b ) / B ( t W q ) in pp collisions at s = 8 TeV
    journal, September 2014


    Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
    journal, September 2014


    PYTHIA 6.4 physics and manual
    journal, May 2006


    Uncertainties on α S in global PDF analyses and implications for predicted hadronic cross sections
    journal, October 2009


    New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
    journal, July 2002