RENORMALIZATION OF THE COTTINGHAM FORMULA

被引：38

作者：

COLLINS, JC

机构：

[1] Joseph Henry Laboratories, Princeton University, Princeton

来源：

NUCLEAR PHYSICS B | 1979年 / 149卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(79)90158-5

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：

The second-order electromagnetic contribution to the mass of a hadron needs an ultraviolet-divergent renormalization. An explicitly renormalized Cottingham formula is derived, and the renormalization is related to the counterterms obtained in perturbation theory. The main effect is to impose a cut-off Λ equal to the subtraction mass used in the renormalization. Within quantum chromodynamics it is shown that the Λ-dependence of the Cottingham formula for the neutron-proton mass difference is of the same magnitude as fourth-order electromagnetic corrections. © 1979.

引用

页码：90 / 100

页数：11

共 34 条

[1] INFRARED SINGULARITIES AND MASSIVE FIELDS [J].