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SUMMARY:Photon-photon collisions at the LHC
DTSTART:20260417T120000Z
DTEND:20260417T130000Z
DTSTAMP:20260522T144100Z
UID:indico-event-17685@indico.global
DESCRIPTION:Speakers: Lucian Harland-Lang (UCL)\n\nLHC collisions can act 
 as a source of photons in the initial state\, in addition to the more stan
 dard quark and gluon-initiated processes. Indeed\, photon-initiated produc
 tion is a promising search channel for BSM states as well as probe of the 
 EW couplings of the SM particles. Due to the colour singlet nature of the 
 photon\, a key feature of this process in proton-proton collisions is the 
 possibility for leaving the protons intact and/or producing rapidity gaps 
 in the final state. Moreover\, the possibilities are not limited to proton
  collisions: in heavy ion collisions\, the ions can act as a strong source
  of photon radiation\, and the photon-initiated channel can play a signifi
 cant role.\nIn this talk I will overview the current status and prospects 
 for photon-initiated production at the LHC\, and discuss some recent devel
 opments in the field\, from coincident particle production to ion excitati
 ons and their role in rapidity gap vetos. I will discuss the theoretical f
 oundations underlying the modelling of such processes and their implementa
 tion in the SuperChic Monte-Carlo event generator. I will in particular mo
 tivate why we are justified in viewing such processes as being due to phot
 on-photon (as opposed to hadron-hadron) collisions\, even if the devil is 
 as always in the detail.\n\nhttps://indico.global/event/17685/
LOCATION:Bohr Conference Room
URL:https://indico.global/event/17685/
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