标题： 一环规范理论振幅与任意数目外部腿 显示英文标题

标题： One-Loop Gauge Theory Amplitudes with an Arbitrary Number of External Legs

摘要： 我们回顾了一圈QCD振幅计算的最新进展。 通过施加单位性和两条腿动量成为共线时正确行为的一致性要求，我们为具有任意外部腿数的一圈振幅构造了假设。 对于可以视为QCD振幅分量的超对称振幅，切割唯一地确定了振幅。 显示英文摘要

摘要： We review recent progress in calculations of one-loop QCD amplitudes. By imposing the consistency requirements of unitarity and correct behavior as the momenta of two legs become collinear, we construct ansatze for one-loop amplitudes with an arbitrary number of external legs. For supersymmetric amplitudes, which can be thought of as components of QCD amplitudes, the cuts uniquely specify the amplitude.