Charged Higgs in Models with Singlet Neutrino in Large Extra Dimensions

Abstract

The charged Higgs decay in the channel H^- ->tau_L^- nu in models with a singlet neutrino can provide a test of large extra dimensions models with TeV scale quantum gravity since in the standard two Higgs doublet model type II, H^- -> tau_L^- nu is suppressed. In the present study, we focus on the decay H^- -> tau_L^- nu at the LHC for Higgs masses larger than the top-quark mass.

Comments: 4 pages, LaTeX2e, 2 figures, 2 tables, Talk given at XXXVIIth Rencontres de Moriond, ElectroWeak Interactions and Unified Theories, March 9th - 16th 2002, Les Arcs, France