Charged Higgs boson in MSSM and beyond

Abstract

We conduct a numerical study over the constrained MSSM (CMSSM), next-to-MSSM (NMSSM) and Uð1Þ extended MSSM (UMSSM) to probe the allowed mass ranges of the charged Higgs boson and its dominant decay patterns, which might come into prominence in the near future collider experiments. We present results obtained from a limited scan for CMSSM as a basis and compare its predictions with the extended models. We observe within our data that a wide mass range is allowed as 0.5ð1Þ ≲ m H AE ≲ 17 TeV in UMSSM (NMSSM). We find that the dominant decay channel is mostly H AE → tb such that BRðH AE → tbÞ ∼ 80%. While this mode remains dominant over the whole allowed parameter space of CMSSM, we realize some special domains in the NMSSM and UMSSM, in which BRðH AE → tbÞ ≲ 10%. In this context, the decay patterns of the charged Higgs can play a significant role to distinguish among the SUSY models. In addition to the tb decay mode, we find that the narrow mass scale in CMSSM allows only the decay modes for the charged Higgs boson to τν (∼16%), and their supersymmetric partnersτν (∼13%).On the other hand, it is possible to realize the mode in NMSSM and UMSSM in which the charged Higgs boson decays into a chargino and neutralino pair up to about 25%. This decay mode requires nonuniversal boundary conditions within the MSSM framework to be available, since CMSSM yields BRðH AE →χ 0 1χ AE 1 Þ ≲ 1%. It can also be probed in the near future collider experiments through the missing energy and CP-violation measurements. Moreover, the chargino mass is realized as m˜χAE 1 ≳ 1 TeV in NMSSM and UMSSM, and these solutions will be likely tested soon in collider experiments through the chargino-neutralino production. Focusing on the chargino-neutralino decay patterns, we also present tables which list the possible ranges for the charged Higgs production and decay modes.

Sparticle spectroscopy and dark matter in a U(1)B−L extension of MSSM

“…The lightest CP-even Higgs boson should be the SM-like Higgs boson to be consistent with these constraints. Since the supersymmetric contributions to these rare decays come from H, A and H ± , these decays also bound their masses as m H ∼ m A ∼ m H ± 300 GeV [54][55][56][57][58].…”

Stop search in SUSY SO(10) GUTs with nonuniversal Gaugino masses

“…(8), which results in independent non-universal SSB mass terms for the gauginos. Despite a variety of different breaking patterns of SO(10) symmetry which may yield different extensions of MSSM, most of them lead to similar implications when one considers the masses, decay channels and possible signals for the stop and gluino [143][144][145][146]. Even though they can yield LSPs other than MSSM neutralinos [147][148][149][150][151], stop and gluino either do not directly decay into such LSPs [152] or they do interact very weakly [153].…”

Charged Higgs bosons in the NMSSM under current LHC constraints

“…Because of the different interactions and decay modes from neutral Higgs bosons, the studies of charged Higgs bosons have been received more and more attentions [21][22][23][24][25]. For charged Higgs bosons lighter than top-quark, they are mainly produced through top quark decay t → bH + , and primarily decay to τ ν and sc.…”

“…We call the scalar h i with largest S 2 component being the SM-like Higgs boson h and take m h 1 < m h 2 < m h 3 and m a 1 < m a 2 . The element of mass matrix M 2 22 indicates that the mass of SM-like Higgs boson receives an additional contribution λ 2 v 2 sin 2 2β in contrast with that of MSSM. Furthermore, the (S 2 , S 3 ) mixing can also raise the mass 33 .…”

“…In contrast to the MSSM, the NMSSM has richer Higgs spectrum, which contains three CP-even Higgs bosons, two CP-odd Higgs bosons and a pair of charged Higgs bosons H ± . Needless to say, the discovery of extra Higgs bosons along with the SM-like Higgs boson will clearly confirm the existence of new physics beyond the SM.Because of the different interactions and decay modes from neutral Higgs bosons, the studies of charged Higgs bosons have been received more and more attentions [21][22][23][24][25]. For charged Higgs bosons lighter than top-quark, they are mainly produced through top quark decay t → bH + , and primarily decay to τ ν and sc.…”