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arXiv · hep-ph/9411324

Triplet Higgs bosons at $e^+e^-$ colliders

R. M. Godbole·B. Mukhopadhyaya·M. Nowakowski
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Abstract

We investigate the possibility of probing the triplet Higgs boson sector via single charged Higgs production in the process $e^+ e^- \to H^+ l ν_l$, at high energy electron-positron colliders, using the tree level $H^+W^-Z$ coupling which is a unique feature of such models. We find that even LEP-200 can give nontrivial information upto $M_{H^{\pm}} \simeq 120 $ GeV if the doublet -triplet mixing is not restricted by the current value of the $ρ$ parameter which is the case in models with a custodial symmetry. Further we point out that in such models, the 4-body, tree level decay $H^+ \to W^*Z^* \to 4$ fermions dominates and hence provides a very clean signal when the four fermions are leptons. At NLC the discovery range for the charged Higgs in triplet models via this process is $\sim 400$ GeV.

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R. M. Godbole, B. Mukhopadhyaya, M. Nowakowski. 1994-11-17. Triplet Higgs bosons at $e^+e^-$ colliders. https://doi.org/10.1016/0370-2693(95)00481-y

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