Collinear radiative electron-positron scattering in the leading logarithmic approximation

Radiative corrections to the cross section of the radiative large-angle Bhabha scattering process at high energies are calculated. The kinematics in which a hard photon is emitted along one of the momentum directions of the charged fermions is considered. Contributions coming from the emission of virtual, soft, and hard additional photons are taken into account in the leading logarithmic...