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Search for Charged Higgs bosons via decays to W± and a 125 GeV Higgs at the Large Hadron Collider

Search for Charged Higgs bosons via decays to W± and a 125 GeV Higgs at the Large Hadron Collider
Search for Charged Higgs bosons via decays to W± and a 125 GeV Higgs at the Large Hadron Collider
The recent observation of a 125 GeV neutral Higgs boson ($H_{\rm obs}$) provides additional input for charged Higgs boson searches in the $H^\pm \to W^\pm H_{\rm obs}$ decay channel at the Large Hadron Collider (LHC). We reassess the discovery potential in this channel, which is important for $H^\pm$ heavier than the top quark mass. When $H_{\rm obs}$ decays to a $b\bar{b}$ pair, knowledge of the Higgs mass aids in the kinematic selection of signal events. We perform a signal-to-background analysis to demonstrate the LHC prospects for charged Higgs discovery in the resulting channel $pp\to t(\bar{b})H^-\to \ell^\pm\nu_\ell jj bb\bar{b}(\bar{b})$+h.c. for standard (300 fb$^{-1}$) and high (3000 fb$^{-1}$) luminosities at design energy, $\sqrt{s}=14 {\rm TeV}$. We find that regions of the parameter space of several two-Higgs doublet models, consistent with constraints from LHC Higgs searches and $b$-physics observables, are testable in this channel.
hep-ph
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Klemm, William
544edc9f-d55c-410a-a189-81dbf320c0e8
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Munir, Shoaib
9e440f1d-64a4-4f6c-9b55-6c13bb544dcd
Wouda, Glenn
4c428984-0189-4bee-ad3a-49129074341e
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Klemm, William
544edc9f-d55c-410a-a189-81dbf320c0e8
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Munir, Shoaib
9e440f1d-64a4-4f6c-9b55-6c13bb544dcd
Wouda, Glenn
4c428984-0189-4bee-ad3a-49129074341e

Enberg, Rikard, Klemm, William, Moretti, Stefano, Munir, Shoaib and Wouda, Glenn (2014) Search for Charged Higgs bosons via decays to W± and a 125 GeV Higgs at the Large Hadron Collider. Proceedings of Science, Charged2014 (027).

Record type: Article

Abstract

The recent observation of a 125 GeV neutral Higgs boson ($H_{\rm obs}$) provides additional input for charged Higgs boson searches in the $H^\pm \to W^\pm H_{\rm obs}$ decay channel at the Large Hadron Collider (LHC). We reassess the discovery potential in this channel, which is important for $H^\pm$ heavier than the top quark mass. When $H_{\rm obs}$ decays to a $b\bar{b}$ pair, knowledge of the Higgs mass aids in the kinematic selection of signal events. We perform a signal-to-background analysis to demonstrate the LHC prospects for charged Higgs discovery in the resulting channel $pp\to t(\bar{b})H^-\to \ell^\pm\nu_\ell jj bb\bar{b}(\bar{b})$+h.c. for standard (300 fb$^{-1}$) and high (3000 fb$^{-1}$) luminosities at design energy, $\sqrt{s}=14 {\rm TeV}$. We find that regions of the parameter space of several two-Higgs doublet models, consistent with constraints from LHC Higgs searches and $b$-physics observables, are testable in this channel.

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More information

Published date: 18 December 2014
Additional Information: 6 pages, 2 figures; Proceedings of "Prospects for Charged Higgs Discovery at Colliders (CHARGED 2014)", 16-18 September 2014, Uppsala, Sweden
Keywords: hep-ph
Organisations: Theory Group

Identifiers

Local EPrints ID: 411787
URI: http://eprints.soton.ac.uk/id/eprint/411787
PURE UUID: 05a16121-120d-4191-8d3b-79f8a7a81ade

Catalogue record

Date deposited: 26 Jun 2017 16:30
Last modified: 09 Nov 2021 11:28

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Contributors

Author: Rikard Enberg
Author: William Klemm
Author: Stefano Moretti
Author: Shoaib Munir
Author: Glenn Wouda

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