Implications of light charged Higgs boson at the LHC Run III in the 2HDM

Abstract

In this study, we focus on the bosonic decays of light charged Higgs boson (i.e., with $M_{H^{\pm }}<m_t$) in the 2-Higgs Doublet Model (2HDM) Type-I. To study the signal of such a charged Higgs state at the Large Hadron Collider (LHC), in a scenario where the $H^0$ boson is the Standard Model (SM)-like one already discovered, we assume that it decays mainly via $h^0{W}^{\pm \ast }$ and/or $H^{\pm }\to A^0{W}^{\pm \ast }$ (i.e., via an off-shell $W^{\pm }$ boson), which can reach a sizable Branching Ratio (BR) for $\tan \beta \ge 4$, when the exclusion bounds from $H^{\pm }\to \tau \nu$ and $cs$ searches get weaker. By using six Benchmark Points (BPs), which are consistent with current LHC constraints, we perform a Monte Carlo (MC) study and examine the sensitivity of the LHC to light charged Higgs boson decaying via the above bosonic modes and produced in top decay following both single top and top pair production processes. Our findings demonstrate that, when the integrated luminosity can reach 100 fb${}^{-1}$, the LHC has the potential to either discover or rule out most of these BPs via either of these two production and decay channels or both.

16 pages, 11 Figures

References in corpus (12)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Big-Bang Nucleosynthesis
• SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
• Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at sqrt(s) = 13 TeV
• Evidence for the $H\to b\bar{b}$ decay with the ATLAS detector
• Search for charged Higgs bosons decaying via $H^{\pm }\to {\tau }^{\pm }\nu$ in fully hadronic final states using $pp$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for a light charged Higgs boson in the H${}^{\pm }$ $\to$ cs channel in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Charged-Higgs Collider Signals with or without Flavor
• Light charged Higgs boson with dominant decay to a charm quark and a bottom quark and its search at LEP2 and future $e^{+}{e}^{-}$ colliders

Cited by in corpus (7)

• Comprehensive study of the light charged Higgs boson in the type-I two-Higgs-doublet model
• Same sign trilepton as signature of charged Higgs in two Higgs doublet model
• Single charged Higgs boson production at the LHC
• Discovery prospects of a light charged Higgs near the fermiophobic region of Type-I 2HDM
• Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I
• Fundamental scalar field with zero dimension from anomaly cancelations
• Enhanced Four-Body Decays of Charged Higgs Bosons into Off-Shell Pseudoscalar Higgs and $W^{\pm }$ Boson Pairs in a Lepton-Specific 2-Higgs Doublet Model