Equivalence of coefficients extraction of one-loop master integrals

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2020,（11）
• 所属期刊栏目: PARTICLE PHYSICS AND QUANTUM FIELD THEORY
• 页码范围: 48-56
• 页数: 9页
• 语种: 英文

摘要

Now,there have been many different methods to calculate one-loop amplitudes.Two of them are the unitarity cut method and the generalized unitarity cut method.In this short paper,we present an explicit connection between these two methods,especially how the extractions of triangle and bubble coefficients are equivalent to each other.