  High energy ultra-peripheral collisions (UPC) of heavy-ions generate strong
electromagnetic fields which open the possibility to study gamma-gamma and
gamma-nucleus processes in a kinematic regime so far unexplored. We report on
preliminary PHENIX results of J/Psi and high-mass e+e- photoproduction at
mid-rapidity in coherent electromagnetic Au+Au interactions at sqrt(s_NN) = 200
GeV tagged with forward neutron emission from the Au* dissociation.
