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Search for a heavy charged Higgs boson decaying into a W boson and a Higgs boson in fnal states with leptons and b-jets in √s = 13 TeV pp collisions with the ATLAS detector ATLAS Collaboration

Abstract

: This article presents a search for a heavy charged Higgs boson produced in association with a top quark and a bottom quark, and decaying into a W boson and a 125 GeV Higgs boson h. The search is performed in fnal states with one charged lepton, missing transverse momentum, and jets using proton-proton collision data at √ s = 13 TeV recorded with the ATLAS detector during Run 2 of the LHC at CERN. This data set corresponds to a total integrated luminosity of 140 fb−1 . The search is conducted by examining the reconstructed invariant mass distribution of the W h candidates for evidence of a localised excess in the charged Higgs boson mass range from 250 GeV to 3 TeV. No signifcant excess of data over the expected background is observed and 95% confdence-level upper limits between 2.8 pb and 1.2 fb are placed on the production cross-section times branching ratio for charged Higgs bosons decaying into W h.

Item Metadata

Title
Search for a heavy charged Higgs boson decaying into a W boson and a Higgs boson in fnal states with leptons and b-jets in √s = 13 TeV pp collisions with the ATLAS detector
Creator
ATLAS Collaboration
Publisher
Springer Berlin Heidelberg
Date Issued
2025-02-21
Description
: This article presents a search for a heavy charged Higgs boson produced in association with a top quark and a bottom quark, and decaying into a W boson and a 125 GeV Higgs boson h. The search is performed in fnal states with one charged lepton, missing transverse momentum, and jets using proton-proton collision data at √ s = 13 TeV recorded with the ATLAS detector during Run 2 of the LHC at CERN. This data set corresponds to a total integrated luminosity of 140 fb−1 . The search is conducted by examining the reconstructed invariant mass distribution of the W h candidates for evidence of a localised excess in the charged Higgs boson mass range from 250 GeV to 3 TeV. No signifcant excess of data over the expected background is observed and 95% confdence-level upper limits between 2.8 pb and 1.2 fb are placed on the production cross-section times branching ratio for charged Higgs bosons decaying into W h.
Subject
Hadron-Hadron Scattering; Beyond the Standard Model searches
Genre
Article
Type
Text
Language
eng
Date Available
2025-07-15
Provider
Vancouver : University of British Columbia Library
Rights
Attribution 4.0 International (CC BY 4.0)
DOI
10.14288/1.0449399
URI
http://hdl.handle.net/2429/91621
Affiliation
Science, Faculty of; TRIUMF; Non UBC; Physics and Astronomy, Department of
Citation
Journal of High Energy Physics. 2025 Feb 21;2025(2):143
Publisher DOI
10.1007/JHEP02(2025)143
Peer Review Status
Reviewed
Scholarly Level
Faculty; Researcher
Copyright Holder
The Author(s)
Rights URI
http://creativecommons.org/licenses/by/4.0/
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Attribution 4.0 International (CC BY 4.0)