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
A search for a light charged Higgs boson produced in decays of the top quark,
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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
6 February 2025
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| In: |
The European physical journal. C, Particles and fields
Year: 2025, Volume: 85, Issue: 2, Pages: 1-34 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-024-13715-4 |
| Online Access: | Resolving-System, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-024-13715-4 Resolving-System, kostenfrei, Volltext: https://link.springer.com/content/pdf/10.1140/epjc/s10052-024-13715-4.pdf 
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| Author Notes: | ATLAS Collaboration |
MARC
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| 246 | 3 | 3 | |a Search for a light charged Higgs boson in t →H +-b decays, with H+- →cs, in pp collisions at square root s = 13 TeV with the Atlas detector |
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| 500 | |a Gesehen am 13.11.2025 | ||
| 500 | |a ATLAS Collaboration: G. Aad, A. Ackermann, L.M. Baltes, F. Bartels, M. Dunford, S. Franchino, Junkermann, T., Mkrtchyan, T., P.S. Ott, Rasslof, D. F., L. Sanfilippo, H.-C. Schultz-Coulon, V. Sothilingan, R. Stamen, P. Starovoitov, S.M. Weber, M. Wessels und viele weitere | ||
| 520 | |a A search for a light charged Higgs boson produced in decays of the top quark, |t \rightarrow H^{\pm } b$$with $$H^{\pm } \rightarrow cs$$, is presented. This search targets the production of top-quark pairs $$t\bar{t} \rightarrow Wb H^{\pm } b$$, with |w \rightarrow \ell \nu $$($$\ell = e, \mu $$), 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 $$t\bar{t}$$background. The data analysed correspond to $$140\hbox { fb}^{-1}$$of $$pp$$collisions at $$\sqrt{s} = 13\hbox { TeV}$$recorded with the ATLAS detector at the LHC between 2015 and 2018. Observed (expected) 95% confidence-level upper limits on the branching fraction $$\mathscr {B}(t\rightarrow H^{\pm } b)$$, assuming $$\mathscr {B}(t\rightarrow Wb) + \mathscr {B}(t \rightarrow H^{\pm } (\rightarrow cs)b)=1.0$$, 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. | ||
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