Photogravitational processes
  In the linearized theory of gravity coupled to the electromagnetic field, we calculate the cross sections of two processes in which both the gravitational and electromagnetic interactions play a role. Those processes, in which a graviton is produced in the final state, are: (a) the photoproduction of gravitons off electrons and (b) the production of a photon and a graviton from electron-positron annihilation. The motivation and outlook for these calculations are discussed. 
Jose F. Nieves and Palash B. Pal