Gauge Dependence of Four-Fermion QED Green Function and Atom-Like Bound State Calculations
High Energy Physics - Phenomenology
2016-09-01 v2
Abstract
We derive a relation between four-fermion QED Green functions of different covariant gauges which defines the gauge dependence completely. We use the derived gauge dependence to check the gauge invariance of atom-like bound state calculations. We find that the existing QED procedure does not provide gauge invariant binding energies. A way to a corrected gauge invariant procedure is pointed out.
Cite
@article{arxiv.hep-ph/9502364,
title = {Gauge Dependence of Four-Fermion QED Green Function and Atom-Like Bound State Calculations},
author = {Grigorii B. Pivovarov},
journal= {arXiv preprint arXiv:hep-ph/9502364},
year = {2016}
}
Comments
10 pages, latex, no figures, lines longer than 80 char corrected