CAN THE MSSM HIGGS BE DISCOVERED AT LHC

This article presents a brief overview of the potential of the ATLAS d etector at LHC for the detectability of the Higgs boson of the Minimal Supersymmetric Standard Model. The expected rates, backgrounds and si gnificances are discussed channel by channel with the realistic assump tions for the detector performance. As final results the range of the MSSM parameter space where expected significances exceed 5 sigma value is shown on the (m(A),tan beta) plane for the ATLAS detector alone an d for combined results from ATLAS and CMS detectors. It is concluded, that potential of combined both LHC detectors will allow for the full coverage in the Higgs sector of the studied region of the MSSM paramet er space. The direct impact of the SUSY particles sector on the Higgs observability is neglected so far.