We present the matrix element of gamma gamma ->4l process with four charge particles in final state. The constructions are performed in frame of Standard Model of electroweak interaction using the helicity amplitude method . Every possible polarization state of initial and final particles are considered and analyzed.
Cite
@article{arxiv.hep-ph/0312208,
title = {Helicity amplitude method for two electron positron pairs photoproduction},
author = {T. Shishkina and I. Sotsky},
journal= {arXiv preprint arXiv:hep-ph/0312208},
year = {2007}
}