Measurements of Light Higgs Couplings at ATLAS

Once discovered, Higgs properties have to be determined. The variuos Higgs couplings determine Higgs production cross sections and decay branching fraction. By measuring the rates of mupltiple channels, various combination of the couplings can be determined. In this talk Higgs different cupling measurements and their uncertainties are shown for an amount of data of 300fb-1, using different theoretical assumptions. The experimental data foresee a light Higgs (114 GeV < MH <200 GeV) and the shown analysis refers to this mass range.