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Search for a light charged Higgs boson in t → H±b decays, with H± → cs, in pp collisions at √s = 13 TeV with the ATLAS detector ATLAS Collaboration
Abstract
A search for a light charged Higgs boson produced in decays of the top quark, t → H±b with H± → cs, is presented. This search targets the production of top-quark pairs tt ¯ → WbH±b, with W → ν ( = e, μ), resulting in a lepton-plus-jets final state characterised by an isolated electron or muon and at least four jets. The search exploits b-quark and c-quark identification techniques as well as multivariate methods to suppress the dominant tt ¯ background. The data analysed correspond to 140 fb−1 of pp collisions at √s = 13 TeV recorded with the ATLAS detector at the LHC between 2015 and 2018. Observed (expected) 95% confidence-level upper limits on the branching fraction B(t → H±b), assuming B(t → W b) + B(t → H±(→ cs)b) = 1.0, are set between 0.066% (0.077%) and 3.6% (2.3%) for a charged Higgs boson with a mass between 60 and 168 GeV.
Item Metadata
| Title |
Search for a light charged Higgs boson in t → H±b decays, with H± → cs, in pp collisions at √s = 13 TeV with the ATLAS detector
|
| Creator | |
| Publisher |
Springer Berlin Heidelberg
|
| Date Issued |
2025-02-06
|
| Description |
A search for a light charged Higgs boson produced in decays of the top quark, t → H±b with H± → cs,
is presented. This search targets the production of top-quark
pairs tt
¯ → WbH±b, with W → ν ( = e, μ), resulting in a lepton-plus-jets final state characterised by an isolated electron or muon and at least four jets. The search
exploits b-quark and c-quark identification techniques as well
as multivariate methods to suppress the dominant tt
¯ background. The data analysed correspond to 140 fb−1 of pp
collisions at √s = 13 TeV recorded with the ATLAS detector at the LHC between 2015 and 2018. Observed (expected)
95% confidence-level upper limits on the branching fraction
B(t → H±b), assuming B(t → W b) + B(t → H±(→
cs)b) = 1.0, are set between 0.066% (0.077%) and 3.6%
(2.3%) for a charged Higgs boson with a mass between 60
and 168 GeV.
|
| Genre | |
| Type | |
| Language |
eng
|
| Date Available |
2025-02-07
|
| Provider |
Vancouver : University of British Columbia Library
|
| Rights |
Attribution 4.0 International (CC BY 4.0)
|
| DOI |
10.14288/1.0448042
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| URI | |
| Affiliation | |
| Citation |
The European Physical Journal C. 2025 Feb 06;85(2):153
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| Publisher DOI |
10.1140/epjc/s10052-024-13715-4
|
| Peer Review Status |
Reviewed
|
| Scholarly Level |
Faculty; Researcher
|
| Copyright Holder |
The Author(s)
|
| Rights URI | |
| Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
Attribution 4.0 International (CC BY 4.0)