Possibility of observing an MSSM charged Higgs boson in association with a W boson at the LHC

The possibility of observing associated production of the charged Higgs and W boson in the framework of the minimal supersymmetric standard model (MSSM) at LHC is studied. Both leptonic and hadronic decays of the W boson are studied while the charged Higgs boson is considered to decay to a tau lepton and a neutrino. Therefore two search categories are defined based on the leptonic and hadronic final states, i.e., l tau + E-T(miss) and jj tau + E-T(miss) where l = e or mu and j is a light jet from W decay. The discovery chance of the two categories is evaluated at an integrated luminosity of 300 fb(-1) at LHC. It is shown that both leptonic and hadronic final states have the chance of discovery at high tan beta. Finally 5 sigma and 3 sigma contours are provided for both search categories.