Low and high energy asymptotic behavior of electroweak corrections in polarized e-e+ → μ-μ+ process

被引：0

作者：

Aleksejevs, A. G. ^{[1
]}

Barkanova, S. G. ^{[1
]}

Bystritskiy, Yu. M. ^{[2
]}

Zykunov, V. A. ^{[2
]}

机构：

[1] Mem Univ, Corner Brook, NF, Canada

[2] JINR, Dubna, Moscow Region, Russia

来源：

CANADIAN JOURNAL OF PHYSICS | 2018年 / 96卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

electroweak radiative corrections; physics beyond the Standard Model; computer algebra; one-loop integrals; Weinberg mixing angle; ONE-LOOP CORRECTIONS; RADIATIVE-CORRECTIONS; MOLLER SCATTERING; PAIR PRODUCTION; STANDARD MODEL; RENORMALIZATION; ANNIHILATION; OBSERVABLES; PROGRAM;

D O I：

10.1139/cjp-2017-0190

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electroweak radiative corrections will play a major role in the analysis of several upcoming ultra-precision experiments, such as Belle-II, so it is crucial to make sure that they are fully under control. This 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(+) -> 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 energy regions, our results are in good agreement with precise computer-algebra-based calculation and can be used as a quicker alternative.

引用

页码：445 / 453

页数：9