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

Authors
LABZOWSKY LN MITRUSHENKOV AO
Citation
Ln. Labzowsky et Ao. Mitrushenkov, RENORMALIZATION OF THE 2ND-ORDER SELF-ENERGY FOR A TIGHTLY BOUND ATOMIC ELECTRON, Physics letters. A, 198(4), 1995, pp. 333-340
Citations number
19
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
198
Issue
4
Year of publication
1995
Pages
333 - 340
Database
ISI
SICI code
0375-9601(1995)198:4<333:ROT2SF>2.0.ZU;2-Z
Abstract
A renormalized expression for the gauge-invariant set of three second- order bound self-energy graphs is obtained. A non-trivial extra counte r term is found that is important for the cancellation of infrared div ergences. Also, a new type of infrared divergences specific to the bou nd-state QED is discussed and its cancellation is traced explicitly. T he expression obtained is convenient for the application of the partia l-wave renormalization technique.