QED vertex form factors at two loops

被引：61

作者：

Bonciani, R ^{[1
]}

Mastrolia, P

Remiddi, E

机构：

[1] Univ Freiburg, Fak Math & Phys, D-79104 Freiburg, Germany

[2] Univ Bologna, Dipartimento Fis, I-40026 Bologna, Italy

[3] Ist Nazl Fis Nucl, Sez Bologna, I-40026 Bologna, Italy

[4] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

NUCLEAR PHYSICS B | 2004年 / 676卷 / 1-2期

关键词：

Feynman diagrams; multi-loop calculations; vertex diagrams; QED form factors;

D O I：

10.1016/j.nuclphysb.2003.10.031

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present the closed analytic expression of the form factors of the two-loop QED vertex amplitude for on-shell electrons of finite mass m and arbitrary momentum transfer S = -Q(2). The calculation is carried out within the continuous D-dimensional regularization scheme, with a single continuous parameter D, the dimension of the space-time, which regularizes at the same time ultraviolet (UV) and infrared (IR) divergences. The results are expressed in terms of 1-dimensional harmonic polylogarithms of maximum weight 4. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：399 / 452

页数：54

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