Triplet production by linearly polarized photons - art. no. 032703

The process of electron-positron pair production by linearly polarized phot ons may be used as a polarimeter to perform mobile measurement of linear ph oton polarization. In the limit of high photon energies omega the distribut ions of the recoil-electron momentum and azimuthal angle do not depend on t he photon energy in the laboratory frame. We calculate the power correction s of order m/omega to the above distributions and estimate the deviation fr om the asymptotic result for various values of omega.