  The first ATLAS measurement of ultra-peripheral collisions is described.
Dimuon pairs from photon--photon scattering have been measured with data of
Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV taken with the ATLAS
detector at the LHC. The measured cross-section is presented as a function of
dimuon invariant mass and rapidity and is well described by STARLIGHT 1.1
calculations. This measurement paves the way for new studies of photon-induced
reactions at the LHC.

Nuclear Experiment;High Energy Physics - Experiment