Low and High Energy Asymptotic Behavior of Electroweak Corrections in Polarized $e^+ e^- \to ��^+ ��^-$ Process
| Autor: | Aleksejevs, A. G., Barkanova, S. G., Bystritskiy, Yu. M., Zykunov, V. A. |
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| Rok vydání: | 2016 |
| Předmět: | |
| DOI: | 10.48550/arxiv.1609.08666 |
| Popis: | 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 $e^- e^+ \to ��^- ��^+ (��)$ 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. 9 pages, 1 table, 7 figures. Some minor changes in Introduction and Conclusion |
| Databáze: | OpenAIRE |
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