Triplet Higgs boson at hadron colliders

Abstract

The novel feature of a Higgs-triplet representation is a nonzero tree-level coupling of $H^{+}{W}^{-}Z$, which is absent in all Higgs-doublet models. We study the associated production of a singly-charged Higgs boson of the Higgs-triplet representation with a $W$ or $Z$ boson at hadron colliders, followed by the $H^{+}\to W^{+}Z$ decay. We find that the $2\ell +4j$ final state gives an interesting level of signal with a negligible background, plus it allows a full mass reconstruction of the charged-Higgs boson. The cover range of the charged-Higgs mass is between 110 and 200 GeV.

Comments: JHEP style, 15 pages, 4 figures, some typos are corrected