Accommodating the LHC Charged Higgs Boson Excess at 130 GeV in the General Two-Higgs Doublet Model

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Autori principali: Arhrib, Abdesslam, Krab, Mohamed, Semlali, Souad
Natura: Preprint
Pubblicazione: 2024
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author Arhrib, Abdesslam
Krab, Mohamed
Semlali, Souad
author_facet Arhrib, Abdesslam
Krab, Mohamed
Semlali, Souad
contents Charged Higgs bosons are common predictions in most extensions of the Standard Model (SM) Higgs sector. Therefore, their observation would elucidate the nature of the Higgs sector. Motivated by the ATLAS collaboration's latest analysis performed with $139~\text{fb}^{-1}$ of Run 2 data intended to search for charged Higgs boson, produced in top quark decay and subsequently decaying via $H^\pm \rightarrow cb$, where an excess with a local significance of $3σ$ is observed at $m_{H^\pm} = 130~\rm{GeV}$, we discuss here the possibility of explaining such excess in the context of the general 2-Higgs Doublet Model (2HDM type-III), after satisfying all theoretical and up-to-date experimental constraints. We also propose phenomenological scenarios to further explore the mass region around 130 GeV in the four Yukawa types of the 2HDM type-III and suggest alternative decay channel $H^\pm \rightarrow cs$ and/or $H^\pm \rightarrow W^{\pm *}h$ to probe the nature of the observed excess (if it is not a statistical fluctuation). Future searches for $H^\pm$ will be critical in confirming or refuting the first hint of a light charged Higgs boson at the LHC.
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id arxiv_https___arxiv_org_abs_2402_03195
institution arXiv
publishDate 2024
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spellingShingle Accommodating the LHC Charged Higgs Boson Excess at 130 GeV in the General Two-Higgs Doublet Model
Arhrib, Abdesslam
Krab, Mohamed
Semlali, Souad
High Energy Physics - Phenomenology
Charged Higgs bosons are common predictions in most extensions of the Standard Model (SM) Higgs sector. Therefore, their observation would elucidate the nature of the Higgs sector. Motivated by the ATLAS collaboration's latest analysis performed with $139~\text{fb}^{-1}$ of Run 2 data intended to search for charged Higgs boson, produced in top quark decay and subsequently decaying via $H^\pm \rightarrow cb$, where an excess with a local significance of $3σ$ is observed at $m_{H^\pm} = 130~\rm{GeV}$, we discuss here the possibility of explaining such excess in the context of the general 2-Higgs Doublet Model (2HDM type-III), after satisfying all theoretical and up-to-date experimental constraints. We also propose phenomenological scenarios to further explore the mass region around 130 GeV in the four Yukawa types of the 2HDM type-III and suggest alternative decay channel $H^\pm \rightarrow cs$ and/or $H^\pm \rightarrow W^{\pm *}h$ to probe the nature of the observed excess (if it is not a statistical fluctuation). Future searches for $H^\pm$ will be critical in confirming or refuting the first hint of a light charged Higgs boson at the LHC.
title Accommodating the LHC Charged Higgs Boson Excess at 130 GeV in the General Two-Higgs Doublet Model
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2402.03195