  The matrix element squared for Compton scattering of a heavy photon on a
longitudinally polarized electron is calculated. The gauge-invariant tensor
structure of the heavy photon polarization is considered, assuming that all
kinematical invariants and the invariant mass of the heavy photon are large
compared with the electron mass. The expressions for the Born and first order
radiative corrections are obtained. Applications are discussed.

High Energy Physics - Phenomenology