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Title: Status of the charged Higgs boson in two Higgs doublet models

Abstract

The existence of charged Higgs boson(s) is inevitable in models with two (or more) Higgs doublets. Hence, their discovery would constitute unambiguous evidence for new physics beyond the Standard Model (SM). Taking into account all relevant results from direct charged and neutral Higgs boson searches at LEP and the LHC, as well as the most recent constraints from flavour physics, we present a detailed analysis of the current phenomenological status of the charged Higgs sector in a variety of well-motivated two Higgs doublet models (2HDMs). We find that charged Higgs bosons as light as 75   G e V can still be compatible with the combined data, although this implies severely suppressed charged Higgs couplings to all fermions. In more popular models, e.g. the 2HDM of Type II, we find that flavour physics observables impose a combined lower limit on the charged Higgs mass of M H ± 600 GeV – independent of tan β – which increases to M H ± 650 GeV for tan β < 1 . We furthermore find that in certain scenarios, the signature of a charged Higgs boson decaying into a lighter neutral Higgs boson and a W boson provides a promising experimental avenue that would greatly complement the existing LHC search programme for charged Higgs boson(s).

Authors:
 [1];  [1];  [2];  [3]
  1. Univ. of Lyon (France). Lyon Centre for Astrophysics Research (CRAL); Inst. of Nuclear Physics of Lyon, Villeurbanne (France); European Organization for Nuclear Research (CERN), Geneva (Switzerland). Theoretical Physics Dept.
  2. Westeros (Sweden)
  3. Univ. of California, Santa Cruz, CA (United States). Santa Cruz Inst. For Particle Physics (SCIPP). Dept. of Physics
Publication Date:
Research Org.:
Univ. of California, Santa Cruz, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1510215
Grant/Contract Number:  
SC0010107
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 3; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Arbey, A., Mahmoudi, F., Stål, O., and Stefaniak, T. Status of the charged Higgs boson in two Higgs doublet models. United States: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-5651-1.
Arbey, A., Mahmoudi, F., Stål, O., & Stefaniak, T. Status of the charged Higgs boson in two Higgs doublet models. United States. doi:10.1140/epjc/s10052-018-5651-1.
Arbey, A., Mahmoudi, F., Stål, O., and Stefaniak, T. Mon . "Status of the charged Higgs boson in two Higgs doublet models". United States. doi:10.1140/epjc/s10052-018-5651-1. https://www.osti.gov/servlets/purl/1510215.
@article{osti_1510215,
title = {Status of the charged Higgs boson in two Higgs doublet models},
author = {Arbey, A. and Mahmoudi, F. and Stål, O. and Stefaniak, T.},
abstractNote = {The existence of charged Higgs boson(s) is inevitable in models with two (or more) Higgs doublets. Hence, their discovery would constitute unambiguous evidence for new physics beyond the Standard Model (SM). Taking into account all relevant results from direct charged and neutral Higgs boson searches at LEP and the LHC, as well as the most recent constraints from flavour physics, we present a detailed analysis of the current phenomenological status of the charged Higgs sector in a variety of well-motivated two Higgs doublet models (2HDMs). We find that charged Higgs bosons as light as 75   G e V can still be compatible with the combined data, although this implies severely suppressed charged Higgs couplings to all fermions. In more popular models, e.g. the 2HDM of Type II, we find that flavour physics observables impose a combined lower limit on the charged Higgs mass of M H ± ≳ 600 GeV – independent of tan ⁡ β – which increases to M H ± ≳ 650 GeV for tan ⁡ β < 1 . We furthermore find that in certain scenarios, the signature of a charged Higgs boson decaying into a lighter neutral Higgs boson and a W boson provides a promising experimental avenue that would greatly complement the existing LHC search programme for charged Higgs boson(s).},
doi = {10.1140/epjc/s10052-018-5651-1},
journal = {European Physical Journal. C, Particles and Fields},
issn = {1434-6044},
number = 3,
volume = 78,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
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