Abstract
The recoil-momentum distribution in high-energy triplet production in hydrogen, taking into account the initial atomic binding of the electron, is calculated. The method of Wheeler and Lamb is used, with the final atomic state specified to be an outgoing electron (Coulomb wave). Explicit recoil distributions for various photon energies from 84 to 2000 mc2 are obtained, and a binding correction to the total triplet cross section of Borsellino is calculated.