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Journal of High Energy Physics

, 2014:148 | Cite as

Charged Higgs search via AW ± /HW ± channel

  • Baradhwaj Coleppa
  • Felix Kling
  • Shufang Su
Open Access
Regular Article - Theoretical Physics

Abstract

Models of electroweak symmetry breaking with extended Higgs sectors are theoretically well motivated. In this study, we focus on models with a low energy spectrum containing a pair of charged scalars H ±, as well as a light scalar H and/or a pseudoscalar A. We study the H ± tb associated production with H ±AW ± /HW ±, which could reach sizable branching fractions in certain parameter regions. With detailed collider analysis, we obtain the exclusion bounds as well as discovery reach at the 14 TeV LHC for the process ppH ± tbAW ± tb/HW ± tbττbbWW, bbbbWW. We find that for a daughter particle mass of 70 GeV, the 95% C.L. exclusion reach in σ × BR varies from about 60 fb to 25 fb, for m H ± ranging from 150 GeV to 500 GeV with 300 fb−1 integrated luminosity in the τ τ mode. We further interpret these bounds in the context of Type II Two Higgs Doublet Model. The exclusion region in the m H ± − tan β plane can be extended to m H ± = 600 GeV, while discovery is possible for m H ± ≲ 400 GeV with 300 fb−1 integrated luminosity. The exotic decay mode H ±AW ± /HW ± offers a complementary channel to the conventional mode H ±τν for charged Higgs searches.

Keywords

Higgs Physics Beyond Standard Model 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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© The Author(s) 2014

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of ArizonaTucsonU.S.A.

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