Monte-Carlo tool SANCphot for polarized $\gamma\gamma$ collision simulation

Abstract

Our study of theoretical uncertainties for the four bosons processes at one-loop level including the case of the transverse polarization is presented. The calculations are based on helicity amplitudes approach for 4-boson SM interactions through a fermion and boson loops. The computation takes into account nonzero mass of loop particles. The obtained predictions are equally suitable for a wide range of energies and for arbitrary, including extreme, regions of the phase volume. Uncertainty estimates are received using the new Monte-Carlo tool SANCphot for $\gamma\gamma$ collision simulation with final states $\gamma\gamma$, $\gamma Z$, $ZZ$ adapted for polarized $\gamma$ beams.