Theoretical developments in the physics of ultra-peripheral ion-ion collisions
October 09, 2019
December 04, 2019
Ultra-peripheral heavy ion collisions are a source of photons that can collide with each other producing a pair of particles or they can collide with the other nucleus producing vector meson. This work will be focused on the analysis of the light-by-light scattering. Here contribution from fermionic boxes, resonance scattering, VDM-Regge model, two-gluon exchange and pionic background will be correlated. Each of these processes dominates at different range of two-photon invariant masses. Our calculated nuclear cross section is in good agreement with recently measured ATLAS and CMS data. Predictions including ALICE and LHCb experimental cuts for the next run at the LHC will be shown.
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