The opposite states of the τ polarization resulting from the charged
Higgs boson and the W boson decays can be exploited to enhance the H±
signal in the inclusive 1-prong hadronic decay channel of τ. We suggest
practical methods of sharpening up the H± 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 ∼20GeV of the parent top quark mass over the full
parameter space of the MSSM.Comment: 14 pages, 4 figures available on reques