Sharpening up the Charged Higgs Boson Signature using Tau Polarization at LHC

Abstract

The opposite states of the $\tau$ polarization resulting from the charged Higgs boson and the $W$ boson decays can be exploited to enhance the $H^{\pm }$ signal in the inclusive 1-prong hadronic decay channel of $\tau$. We suggest practical methods of sharpening up the $H^{\pm }$ signature in the top quark decay at LHC using this idea. As a result one can carry on the charged Higgs boson search to within $\sim 20GeV$ of the parent top quark mass over the full parameter space of the MSSM.

Comments: 14 pages, 4 figures available on request