Higgs Searches with ATLAS

The search for the Standard Model Higgs boson with the ATLAS detector at the LHC is reported. The search combines several decay channels in the mass range 110 < mH < 600 GeV and derives upper limits on the production cross section as a function of mH . A search for neutral MSSM Higgs bosons (A/H/h) decaying to τ lepton pairs is also reported, where upper limits on the production cross sections are derived as a function of the parameters mA and tanβ. The searches are based on a dataset corresponding to an integrated luminosity ranging from 1.0 fb to 2.3 fb of pp collisions at a centre-of-mass energy of 7 TeV. A Standard Model Higgs boson is excluded in the mass regions 146 < mH < 232 GeV, 256 < mH < 282 GeV and 296 < mH < 466 GeV at the 95% CL and the excluded regions of MSSM parameter space are extended beyond the limits set by previous experiments at LEP and the Tevatron.