Speaker
Mr
Vitaly Yermolchyk
(INP BSU)
Description
We present implementation of $e^+ e^- \to \gamma \gamma$ process in **MCSANC** project.
The dominant processes in the $e^+ e^-$ experiments are the processes of annihilation.
Possible alternative lumiprocess Bhabha is large angle photon-pair production and
annihilation to muon pair because the cross section value of the photon-pair production estimated for large angles is of the same order as that of Bhabha scattering.
We calculate full one-loop electroweak radiative correction with respect of all masses and taking into account polarization of initial beams. The results of the calculation are integrated in the Monte Carlo generator **MCSANC**.
We reached good agreement and present a comprehensive comparison
with results existing in the world literature, i.e.
at tree level with **CalcHEP**, **WHIZARD** and
at one-loop level without polarization effect with **BabaYaga@NLO**.
Primary authors
Dr
Leonid Rumyantsev
(JINR)
Dr
Lidia Kalinovskaya
(JINR)
Dr
Serge Bondarenko
(JINR)
Mr
Vitaly Yermolchyk
(INP BSU)
