摘要
We study the relation between the symmetry group of a Feynman diagram and its reduced diagrams.We then prove that the counterterms in the BPHZ renormalization scheme are consistent with adding counterterms to the interaction Hamiltonian in all cases,including that of Feynman diagrams with symmetry factors.
作者
郝昆
石康杰
Kun Hao;Kangjie Shi(Institute of Modern Physics,Northwest University,Xi’an 710127,China;CNYang Institute for Theoretical Physics,Stony Brook University,NY 11794,USA;Peng Huanwu Center for Fundamental Theory,Xi’an 710127,China;Shaanxi Key Laboratory for Theoretical Physics Frontiers,Xi’an 710127,China)
基金
Supported by the National Natural Science Foundation of China(11805152,10575080,11947301)
the Natural Science Basie Research Program of Shaanxi Province(2019JQ-107)
Shaanxi Key Laboratory for Theoretical Physics Frontiers in China。
