Two-loop tensor integrals in quantum field theory

被引：30

作者：

Actis, S

Passarino, G

Ferroglia, A

Passera, M

Uccirati, S

机构：

[1] Univ Turin, Dipartimento Fis Teor, Turin, Italy

[2] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[3] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[4] Univ Karlsruhe, Inst Theoret Teilchenphys, Karlsruhe, Germany

[5] Univ Padua, Dipartimento Fis, Padua, Italy

[6] Univ Valencia, Dept Fis Teor, CSIC, Valencia, Spain

[7] Univ Valencia, IFIC, Valencia, Spain

[8] Univ Bern, Inst Theoret Phys, CH-3012 Bern, Switzerland

[9] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany

[10] Univ Padua, Ist Nazl Fis Nucl, Padua, Italy

来源：

NUCLEAR PHYSICS B | 2004年 / 703卷 / 1-2期

关键词：

Feynman diagrams; multi-loop calculations; self-energy diagrams; vertex diagrams;

D O I：

10.1016/j.nuclphysb.2004.10.018

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：

A comprehensive study is performed of general massive, tensor, two-loop Feynman diagrams with two and three external legs. Reduction to generalized scalar functions is discussed. Integral representations, supporting the same class of smoothness algorithms already employed for the numerical evaluation of ordinary scalar functions, are introduced for each family of diagrams. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：3 / 126

页数：124

共 90 条

[1] The two-loop scalar and tensor Pentabox graph with light-like legs (vol 575, pg 416, 2000) [J].