Decay of Charged Higgs boson in TeV scale supersymmetric seesaw model

TL;DR

This paper explores how TeV-scale supersymmetric seesaw models affect charged Higgs boson decay, revealing enhanced decay channels and distinctive collider signals due to sneutrino interactions.

Contribution

It demonstrates the impact of TeV-scale right-handed sneutrinos on Higgs phenomenology and collider signatures in supersymmetric models.

Findings

Enhanced charged Higgs decay into sneutrino and slepton

Destructive interference in lightest Higgs mass corrections

Potential for distinctive collider signals

Abstract

We discuss phenomenological consequences of some class of supersymmetric seesaw models in which the right-handed (s)neutrino mass is given to be TeV scale. In this scenario, scalar trilinear interaction of Higgs-slepton-(right-handed) sneutrino is enhanced. We show that the 1-loop correction by sneutrino exchange to the lightest Higgs boson mass destructively interferes with top-stop contributions in the minimal SUSY Standard Model. We find that a decay of charged Higgs boson into sneutrino and charged slepton is sizably enhanced and hence it gives rise to a distinctive signal at future collider experiments in some parameter space.