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.

20 pages, 22 eps figures, more reference added

References in corpus (6)

• Hints of large tan(beta) in flavour physics
• The NMSSM Close to the R-symmetry Limit and Naturalness in $h\to aa$ Decays for $m_a<2\mb$
• Probing NMSSM Scenarios with Minimal Fine-Tuning by Searching for Decays of the Upsilon to a Light CP-Odd Higgs Boson
• Role of h --> eta eta in Intermediate-Mass Higgs Boson Searches at the Large Hadron Collider
• Hunting a light CP-odd non-standard Higgs boson through its tauonic decay at a (Super) B factory
• Another step towards a no-lose theorem for NMSSM Higgs discovery at the LHC

Cited by in corpus (2)

• Many Light Higgs Bosons in the NMSSM
• Same-sign Charged Higgs Pair Production in bosonic decay channels at the HL-LHC and HE-LHC