The charged Higgs in hadronic decays with the ATLAS detector

The possibility of detecting the charged Higgs through its hadronic decay modes, using the ATLAS detector at the LHC is presented in this paper, in the context of the Minimal Supersymmetric Standard Model with the assumption that the mass scale of supersymmetric partners of ordinary matter is above the charged Higgs mass. For the charged Higgs mass below the top quark mass, the decay H+- ---> cs(bar) can be used to determine the mass of the charged Higgs assuming it is discovered through other channels, for instance H+- ---> tau nu, by observing the excess of tau production over the Standard Model prediction. Above the top quark mass, the charged Higgs can be detected through H+- ---> tb up to 400 GeV/c^2 for low or high tan beta (<2 or > 20).