Equivalence of coefficients extraction of one-loop master integrals  

作　　者：Yang An Zi-ang Hu Zhongjie Huang Yi Li Xiang Lv 

机构地区：[1]Zhejiang Institute of Modern Physics,Department of Physics,Zhejiang University,No.38 Zheda Road,Hangzhou,China [2]Department of Physics,Zhejiang University,No.38 Zheda Road,Hangzhou,China

出　　处：《Communications in Theoretical Physics》2020年第11期48-56,共9页理论物理通讯（英文版）

基　　金：supported by Chinese NSF funding under contract No.11575156。

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.

关 键 词：scattering amplitude one loop correction 

分 类 号：O572[理学—粒子物理与原子核物理]