Probing the charged Higgs quantum numbers through the decay H^+ -> W^+ h^0

Cruz, J. L. Diaz; Felix-Beltran, O.; Hernandez-Sanchez, J.; Barradas-Guevara, E.

Probing the charged Higgs quantum numbers through the decay H^+ -> W^+ h^0

Authors

Cruz, J. L. Diaz

Felix-Beltran, O.

Hernandez-Sanchez, J.

Barradas-Guevara, E.

Description

The vertex H^+_αW^-h^0_β, involving the gauge boson W^+- and the charged (H^+-_α) and neutral Higgs bosons (h^0_β), arises within the context of many extensions of the SM, and it can be used to probe the quantum numbers of the Higgs multiplet. After presenting a general discusion for the expected form of this vertex with arbitrary Higgs representations, we discuss its strength for several specific models, which include: i) the Two-Higgs Doublet Model (THDM), both the generic and the SUSY case, and ii) models with additional Higgs triplets, including both SUSY and non-SUSY cases. We find that in these models, there are regions of parameters where the decay H^+_α-> W^+ h^0_β, is kinematically allowed, and reaches Branching Ratios (BR) that may be detectable, thus allowing to test the properties of the Higgs sector.
20 pages, 9 figures