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Preludes to confinement: Infrared properties of the gluon propagator in the Landau gauge

1988; Elsevier BV; Volume: 202; Issue: 2 Linguagem: Inglês

10.1016/0370-2693(88)90019-6

1873-2445

N.N. Brown, M. R. Pennington,

Particle physics theoretical and experimental studies

We obtain a solution for the gluon propagator in the Landau gauge that self-consistently satisfies a truncation of the Schwinger-Dyson equations at essentially all relevant momenta. Our treatment goes beyond that of earlier work in covariant gauges and avoids a “no-go” theorem applicable to axial gauges. We deduce the propagator is as singular as 1q4 for q ⪡ Λ, indicative of confinement.