ALICE measurements of coherents rho0 photoproduction in Pb--Pb ultraperipheral collisions

Abstract

The powerful photon fluxes of relativistic nuclei provide the possibility to study photonuclear and two-photon interactions in ultra-peripheral collisions (UPC), where the nuclei do not overlap and no strong nuclear interactions occur. Within the Vector Meson Dominance Model (VDM), the 0 contribution dominates the QCD part of the photon structure function. The + A → 0 + A * Speaker