Integral coefficients for one-loop amplitudes

被引：64

作者：

Britto, Ruth ^{[1
]}

Feng, Bo ^{[2
]}

机构：

[1] Univ Amsterdam, Inst Theoret Phys, Valckenierstr 65, NL-1018 XE Amsterdam, Netherlands

[2] Zhejiang Univ, Ctr Math Sci, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2008年 / 02期

关键词：

NLO computations; QCD;

D O I：

10.1088/1126-6708/2008/02/095

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 a set of algebraic functions for evaluating the coefficients of the scalar integral basis of a general one-loop amplitude. The functions are derived from unitarity cuts, but the complete cut-integral procedure has been carried out in generality so that it never needs to be repeated. Where the master integrals are known explicitly, the results here can be used as a black box with tree-level amplitudes as input and one-loop amplitudes as output.

引用

页数：30

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