Electromagnetic and unified gauge fields;
Field theory;
D O I:
10.1007/BF02775783
中图分类号:
O412 [相对论、场论];
O572.2 [粒子物理学];
学科分类号:
摘要:
A simple derivation of the Gell-Mann-Low and Callan-Symanzik equations in finite QED is given. We control the corrections depending on the electron mass.