GAUGE COVARIANT FERMION PROPAGATOR IN QUENCHED, CHIRALLY SYMMETRICAL QUANTUM ELECTRODYNAMICS

Authors
DONG ZH MUNCZEK HJ ROBERTS CD
Citation
Zh. Dong et al., GAUGE COVARIANT FERMION PROPAGATOR IN QUENCHED, CHIRALLY SYMMETRICAL QUANTUM ELECTRODYNAMICS, Physics letters. Section B, 333(3-4), 1994, pp. 536-544
Citations number
17
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
333
Issue
3-4
Year of publication
1994
Pages
536 - 544
Database
ISI
SICI code
0370-2693(1994)333:3-4<536:GCFPIQ>2.0.ZU;2-I
Abstract
We discuss the chirally symmetric solution of the massless, quenched, Dyson-Schwinger equation for the fermion propagator in three and four dimensions. The solutions are manifestly gauge covariant. We consider a gauge covariance constraint on the fermion-gauge-boson vertex, which motivates a vertex Ansatz that both satisfies the Ward identity when the fermion self-mass is zero and ensures gauge covariance of the ferm ion propagator.