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Search for a light charged Higgs boson in t→H±b decays, with H±→cs, in pp collisions at s=13TeV with the ATLAS detector

Publicated to:European Physical Journal c. 85 (2): - 2025-02-01 85(2), DOI: 10.1140/epjc/s10052-024-13715-4

Authors: Zwalinski L; Zou W; Zormpa O; Zorbas TG; Zoch K; Zoccoli A; Živković L; Ziolkowski M; Zinsser J; Zimine NI; Zhukov K; Zhuang X; Zhu Y; Zhu Y; Zhu X; Zhu J; Zhu CG; Zhou Y; Zhou Y; Zhou Y; Zhou N; Zhou H; Zhou B; Zhong D; Zheng Z; Zheng X; Zheng K; Zheng J; Zhemchugov A; Zhao Z; Zhao Z; Zhao Y; Zhao T; Zhao H; Zhang Z; Zhang Z; Zhang Z; Zhang Y; Zhang Y; Zhang Y; Zhang X; Zhang X; Zhang T; Zhang S; Zhang S; Zhang R; Zhang P; Zhang L; Zhang L; Zhang K; Zhang J; Zhang J; Zhang DF; Zhai M; Zerwas D; Zerradi S; Zenz S; Ženiš T; Zenin O; Zenger DT; Zeng JC; Zeng H; Zeitnitz C; Zaplatilek O; Zanzi D; Zang J; Saa JAZ; Zambito S; Zakareishvili T; Zak ZK; Zaid E; Zabinski B; Zaazoua M; Yue L; Yuan R; Yuan M; Yuan J; Yu Y; Yu C; Young C; Young CJS; Younas S; Yorita K; Yin P; Yildirim TP; Yexley MR; Yeo B; Yeletskikh I; Yeh Y; Ye X; Ye S; Ye J; Ye H; Ye H; Yao WM; Yang Z; Yang Y; Yang Y; Yang X; Yang X

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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→ℓν (ℓ=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 140fb-1 of pp collisions at s=13TeV 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→Wb)+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.

Keywords

Astronomia / físicaBiotecnologíaEngenharias iiiEngenharias ivEngineering (miscellaneous)EnsinoInterdisciplinarMatemática / probabilidade e estatísticaPhysics and astronomy (miscellaneous)Physics, particles & fields

Quality index

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-05-27:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 1.

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.25.
  • The number of mentions on the social network Facebook: 1 (Altmetric).
  • The number of mentions on the social network X (formerly Twitter): 3 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Chile; China; Czech Republic; France; Germany; Gran Bretanya; Greece; India; Italy; Japan; Morocco; Poland; Serbia; Slovakia; Switzerland; United Kingdom; United States of America.