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arXiv · 1609.08666

Low and High Energy Asymptotic Behavior of Electroweak Corrections in Polarized $e^+ e^- \to \mu^+ \mu^-$ Process

A. G. Aleksejevs·S. G. Barkanova·Yu. M. Bystritskiy·V. A. Zykunov
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Abstract

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 $e^- e^+ \to \mu^- \mu^+ (\gamma)$ 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.

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A. G. Aleksejevs, S. G. Barkanova, Yu. M. Bystritskiy, V. A. Zykunov. 2016-09-27. Low and High Energy Asymptotic Behavior of Electroweak Corrections in Polarized $e^+ e^- \to \mu^+ \mu^-$ Process. https://arxiv.org/abs/1609.08666

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