Abstract:
The LHC proton and lead high-energy beams are sources of intense light. The LHC machine effectively serves as a photon-photon collider producing interesting events with very little activity from the interacting beam particles which can be used to test the electroweak sector of the Standard Model. In the seminar, techniques to select these events will be discussed and new ATLAS results involving photon-photon fusion will be presented: the observation of photo-produced weak-boson pair-production, cross-section measurement of lepton pair production with proton tagging in the ATLAS Forward Proton Spectrometer, and measurements of muon pair production and light-by-light scattering in ultra-peripheral lead-lead collisions.
The seminar will be held online only via ZOOM video conference system (see link above)