as a function of energy. The prediction of different hadronic models for proton and iron are shown. Numbers indicate the number of events in each energy bin and brackets represent the systematic uncertainty.
Conversion of (circles) and (triangles) to , as a function of energy. On the left (right) plot we use QGSJetII-04 (Epos-LHC ) as the reference hadronic model. Brackets correspond to the systematic uncertainties.