1112.2565 (V. V. Bytev et al.)

Leptonic tensor for hard photon emission in annihilation channel.Dirac
tensor with heavy photon    [PDF]

V. V. Bytev, E. A. Kuraev, E. S. Scherbakova

For the large-angles hard photon emission by initial leptons in process of
high energy annihilation of $e^+ e^- \to $ to hadrons the Dirac tensor is
obtained, taking into account the lowest order radiative corrections. The case
of large-angles emission of two hard photons by initial leptons is considered.
This result is being completed by the kinematics case of collinear hard photons
emission as well as soft virtual and real photons and can be used for
construction of Monte-Carlo generators.

View original: http://arxiv.org/abs/1112.2565