Exclusive $\gamma\gamma\rightarrow l^+l^-$ production at $\sqrt{s}=7$ TeV with ATLAS experiment

ATLAS first measurement of exclusive two-photon production is presented. Production cross section of dileptons is measured using 2011 data corresponding to the luminosity of 4.6fb-1. The measured cross section is found to be approximately by 20% lower than theoretical predictions implemented in existing Monte-Carlo generators. This is consistent with predictions of absorbtive corrections due to additional QCD interactions.