Measurements of the elastic, inelastic and total cross sections in pp collisions with ATLAS subdetectors

Results from the ATLAS experiment at LHC on the total cross section (σtot), the inelastic cross section (σinel), and the elastic cross section (σel) at √s=7 TeV are summarized . All the results are based upon measurements of the differential elastic cross section using the Roman Pot technique which allow to approach the detectors close to the beam. The results will be compared to other experiments and will also be discussed in relation to previous ATLAS measurements based upon “minimum bias“ data .