Correct electron-propagator and U-MATRIX renormalization replacing the inconsistent on-mass-shell renormalization and the renormalized natural line shape

Authors
Seke, J
Citation
J. Seke, Correct electron-propagator and U-MATRIX renormalization replacing the inconsistent on-mass-shell renormalization and the renormalized natural line shape, MOD PHY L B, 14(15), 2000, pp. 539-546
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MODERN PHYSICS LETTERS B
ISSN journal
02179849 → ACNP
Volume
14
Issue
15
Year of publication
2000
Pages
539 - 546
Database
ISI
SICI code
0217-9849(20000630)14:15<539:CEAURR>2.0.ZU;2-W
Abstract
After pointing out the drastic violation of the U-matrix boundary condition by the conventional quantum-field-theoretical on-mass-shell renormalizatio n of the electron propagator, a new consistent renormalization concept (wit hout mass and charge renormalization) is presented. From the correctly reno rmalized bound-electron propagator (respectively, U-matrix), the natural li ne shape is for the first time, after 50 years, correctly calculated in QFT .