On General Axial Gauges for QCD

Abstract

General Axial Gauges within a perturbative approach to QCD are plagued by 'spurious' propagator singularities. Their regularisation has to face major conceptual and technical problems. We show that this obstacle is naturally absent within a Wilsonian or 'Exact' Renormalisation Group approach and explain why this is so. The axial gauge turns out to be a fixed point under the flow, and the universal 1-loop running of the gauge coupling is computed.

4 pages, latex, talk presented by DFL at QCD'98, Montpellier, July 2-8, 1998; to be published in Nucl. Phys. B (Proc. Suppl.)

References in corpus (2)

• Exact evolution equation for the effective potential
• Flow Equations for Yang-Mills Theories in General Axial Gauges

Cited by in corpus (6)

• Exact Renormalization Group Equations. An Introductory Review
• Quantum gravity: a fluctuating point of view
• Wilsonian flows and background fields
• Gauge invariance and background field formalism in the exact renormalisation group
• Renormalisation group flows for gauge theories in axial gauges
• Infrared singularities in the renormalization group flow of Yang-Mills theories in the axial gauge