The hadronic tau decay of a heavy charged Higgs in models with singlet neutrino in large extra dimensions

Abstract

We study the LHC sensitivity to the charged Higgs discovery in the channel H^- -> tau_L^- nu in models with a singlet neutrino in large extra dimensions. The observation of such a signal would provide a distinctive evidence for these models since in the standard two Higgs doublet model type II, H^- -> tau_L^- nu is completely suppressed.

Comments: 10 pages, 14 figures, 3 tables (LaTeX, style REVTeX 4), minor changes (improved discussion of the neutrino masses, a new reference added)