Measurement of the inclusive muon differential cross section with the ATLAS detector at LHC

We present the measurement of the muon inclusive differential cross section (dsigma/dpT) in pp collisions at sqrt(s)=7 TeV with the ATLAS detector. The analysis is performed in the pseudorapidity interval |eta| < 2.5 for muons of transverse momentum 4 < pT < 100 GeV and with an integrated luminosity of 1.4 pb^(-1). The result is compared with the Next-To-Leading Order with Next to Leading Log high p$_{T}$ resummation prediction for the heavy flavour production and with MC@NLO prediction for W-Z bosons production. The measurement is sensitive for the first time to the Next to Leading Log contribution to the heavy flavour production in hadronic interactions.