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Light charged Higgs boson with dominant decay to quarks and its search at the LHC and future colliders

Light charged Higgs boson with dominant decay to quarks and its search at the LHC and future colliders
Light charged Higgs boson with dominant decay to quarks and its search at the LHC and future colliders

The possibility of a light charged Higgs boson H± that decays predominantly to quarks (cs and/or cb) and with a mass in the range 80 GeV≤mH±≤90 GeV is studied in the context of three-Higgs-doublet models (3HDMs). At present, the Large Hadron Collider (LHC) has little sensitivity to this scenario, and currently the best constraints are from LEP2 and Tevatron searches. The branching ratio of H±→cb can be dominant in two of the five types of 3HDM, and we determine the parameter space where this occurs. The decay H±→cb has recently been searched for at the LHC for the first time, and with increased integrated luminosity, one would expect sensitivity to the region 80 GeV≤mH±≤90 GeV due to the smaller backgrounds with respect to H±→cs decays.

2470-0010
Akeroyd, A. G.
e5de827d-7119-41c2-9f1e-5ef123afdf98
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Song, Muyuan
e4382359-6397-4b91-9101-c44f8a69ec43
Akeroyd, A. G.
e5de827d-7119-41c2-9f1e-5ef123afdf98
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Song, Muyuan
e4382359-6397-4b91-9101-c44f8a69ec43

Akeroyd, A. G., Moretti, Stefano and Song, Muyuan (2018) Light charged Higgs boson with dominant decay to quarks and its search at the LHC and future colliders. Physical Review D, 98 (11). (doi:10.1103/PhysRevD.98.115024).

Record type: Article

Abstract

The possibility of a light charged Higgs boson H± that decays predominantly to quarks (cs and/or cb) and with a mass in the range 80 GeV≤mH±≤90 GeV is studied in the context of three-Higgs-doublet models (3HDMs). At present, the Large Hadron Collider (LHC) has little sensitivity to this scenario, and currently the best constraints are from LEP2 and Tevatron searches. The branching ratio of H±→cb can be dominant in two of the five types of 3HDM, and we determine the parameter space where this occurs. The decay H±→cb has recently been searched for at the LHC for the first time, and with increased integrated luminosity, one would expect sensitivity to the region 80 GeV≤mH±≤90 GeV due to the smaller backgrounds with respect to H±→cs decays.

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Published date: 18 December 2018

Identifiers

Local EPrints ID: 427487
URI: https://eprints.soton.ac.uk/id/eprint/427487
ISSN: 2470-0010
PURE UUID: dde460ef-17c2-44d7-b71b-f44cc46a66d2

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Date deposited: 21 Jan 2019 17:30
Last modified: 13 Mar 2019 17:38

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