One-loop electroweak radiative corrections to polarized $e^{+}{e}^{-}\to \gamma Z$ process

Abstract

This paper gives high-precision theoretical predictions for cross sections of the process $e^{+}{e}^{-}\to \gamma Z$ for future electron-positron colliders. The calculations are performed using the SANC system. They include complete one-loop electroweak radiative corrections, as well as longitudinal polarization of the initial state. Numerical results are given for the center-of-mass system energy range $\sqrt{s}=250-1000$ GeV with various polarization degrees in the $\alpha (0)$ and $G_{\mu }$ EW schemes. This study is a contribution to the research program of the CEPC project being under development in China.

15 pages, 8 figures, 3 tables