Equivalence of Coefficients Extraction of One-loop Master Integrals
Yang An, Hu, Zi-ang, Zhongjie Huang, Yi Li, Lv, Xiang · arXiv (Cornell University) · 2018
Now there are many different methods to do the PV-reduction for the one loop amplitudes. Two of them are unitarity cut method and generalized unitarity cut method. In this short paper, we present an explicit connection of these two methods, especially how the extractions of triangle and bubble coefficients are equivalent to each other.