Pseudorapidity distribution of photons for inelastic events as a function of $\eta - y_{\rm beam}$ for pp collisions at $\sqrt{s}$ = 0.9, 2.76 and 7 TeV. Correspondingdistributions from PYTHIA (tune ATLAS-CSC) are superimposed The statistical uncertainties are within symbol sizes andthe shaded regions represent the systematic uncertainties