Gauge covariant fermion propagator in quenched, chirally-symmetric quantum electrodynamics

Details Gauge covariant fermion propagator in quenched, chirally-symmetric quantum electrodynamics Gauge covariant fermion propagator in quenched, chirally-symmetric quantum electrodynamics

1994-03-09

arxiv.org/abs/hep-ph/9403252v1

Phys.Lett.B333:536-544,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages. REVTEX 3.0. ANL-PHY-7711-TH-94

Scientific paper

10.1016/0370-2693(94)90180-5

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 fermion propagator.

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