Charged Higgs bosons in the Next-to MSSM (NMSSM)

Abstract

The charged Higgs boson decays $H^{\pm }\to W^{\pm }{A}_1$ and $H^{\pm }\to W^{\pm }{h}_i$ are studied in the framework of the next-to Minimal Supersymmetric Standard Model (NMSSM). It is found that the decay rate for $H^{\pm }\to W^{\pm }{A}_1$ can exceed the rates for the ${\tau }^{\pm }\nu$ and $tb$ channels both below and above the top-bottom threshold. The dominance of $H^{\pm }\to W^{\pm }{A}_1$ is most readily achieved when $A_1$ has a large doublet component and small mass. We also study the production process $pp\to H^{\pm }{A}_1$ at the LHC followed by the decay $H^{\pm }\to W^{\pm }{A}_1$ which leads to the signature $W^{\pm }{A}_1{A}_1$. We suggest that $pp\to H^{\pm }{A}_1$ is a promising discovery channel for a light charged Higgs boson in the NMSSM with small or moderate $\tan \beta$ and dominant decay mode $H^{\pm }\to W^{\pm }{A}_1$. This $W^{\pm }{A}_1{A}_1$ signature can also arise from the Higgsstrahlung process $pp\to W^{\pm }{h}_1$ followed by the decay $h_1\to A_1{A}_1$. It is shown that there exist regions of parameter space where these processes can have comparable cross sections and we suggest that their respective signals can be distinguished at the LHC by using appropriate reconstruction methods.

arXiv comment20 pages, 22 eps figures, more reference added

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Cited by in corpus (8)

• The Next-to-Minimal Supersymmetric Standard Model
• Higgs Bosons in the Next-to-Minimal Supersymmetric Standard Model at the LHC
• Many Light Higgs Bosons in the NMSSM
• Light Higgs bosons in phenomenological NMSSM
• Unconventional phenomenology of a minimal two-Higgs-doublet model
• Same-sign Charged Higgs Pair Production in bosonic decay channels at the HL-LHC and HE-LHC
• Associated central exclusive production of charged Higgs bosons
• Enhancement of associated H^\pm W^\mp production in the NMSSM