RENORMALIZATION OF THE 2ND-ORDER SELF-ENERGY FOR A TIGHTLY BOUND ATOMIC ELECTRON

被引：14

作者：

LABZOWSKY, LN

MITRUSHENKOV, AO

机构：

[1] Institute of Physics, St. Petersburg University, St. Petersburg

来源：

PHYSICS LETTERS A | 1995年 / 198卷 / 04期

关键词：

D O I：

10.1016/0375-9601(94)00972-R

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A renormalized expression for the gauge-invariant set of three second-order bound self-energy graphs is obtained. A non-trivial extra counter term is found that is important for the cancellation of infrared divergences. Also, a new type of infrared divergences specific to the bound-state QED is discussed and its cancellation is traced explicitly. The expression obtained is convenient for the application of the partial-wave renormalization technique.

引用

页码：333 / 340

页数：8

共 19 条

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