CURRENT TENSOR WITH A HEAVY PHOTON FOR PAIR PRODUCTION BY A LONGITUDINALLY POLARIZED ELECTRON
Konchatnij M.I., Merenkov N.P., Shekhovzova O.N.

Поступила в редакцию: 18 Января 2000

PACS: 12.15.Lk; 12.20.-m; 13.65.+i

The electron current tensor for the scattering of a heavy photon on a longitudinally polarized electron accompanied with an additional electron-positron pair is considered. The contribution of soft and hard collinear and semicollinear pairs is taken into account. The full analysis of the spin-independent and spin-dependent parts of the electron current tensor is performed. The obtained result allows us to calculate the corresponding contribution into the second-order radiative correction to cross-sections of different processes with the next-to-leading accuracy.