ATLAS Event Display: photonuclear collision

Event display of a photonuclear collision, where a high-energy photon strikes a lead nucleus, recorded by the ATLAS detector during 2018 Pb+Pb collision period. The charged particles that bend in the magnetic field and are measured by ATLAS are shown as lines and energy deposits in the calorimeters (green and blue blocks). In this photonuclear collision, the participating lead nucleus was going to the left, while the photon was going to the right.