Two-loop correction to Bhabha scattering

被引：119

作者：

Bern, Z ^{[1
]}

Dixon, L

Ghinculov, A

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.63.053007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the two-loop virtual QED corrections to e(+) e(-) --> mu (+) mu (-) and Bhabha scattering in dimensional regularization. The results are expressed in terms of polylogarithms. The form of the infrared divergences agrees with previous expectations. These results are a crucial ingredient in the complete next-to-next-to-leading order QED corrections to these processes. A future application will be to reduce theoretical uncertainties associated with luminosity measurements at e(+) e(-) colliders. The calculation also tests methods that may be applied to analogous QCD processes.

引用

页数：12

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