Electroweak radiative corrections will play a major role in the analysis of several upcoming ultra-precision experiments such as Belle-II, so is crucial to make sure that they are fully under control. The article outlines the recent developments in the theoretical and computational approaches to one-loop (NLO) electroweak radiative corrections to the parity-violating asymmetry in e−e+→μ−μ+(γ) process with longitudinally polarized electrons. We derive asymptotic expressions for low and high energy regions (well below or above Z-resonance, correspondingly) and analyze the leading contributions. For most of energy regions, our results are in good agreement with precise computer-algebra based calculation and can used as a quicker alternative.
@article{arxiv.1609.08666,
title = {Low and High Energy Asymptotic Behavior of Electroweak Corrections in Polarized $e^+ e^- \to \mu^+ \mu^-$ Process},
author = {A. G. Aleksejevs and S. G. Barkanova and Yu. M. Bystritskiy and V. A. Zykunov},
journal= {arXiv preprint arXiv:1609.08666},
year = {2017}
}
Comments
9 pages, 1 table, 7 figures. Some minor changes in Introduction and Conclusion