Leading order QCD in Coulomb gauge

Details Leading order QCD in Coulomb gauge Leading order QCD in Coulomb gauge

2011-11-30

arxiv.org/abs/1111.7279v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures, talk given at the "II International Workshop on QCD Green's Functions, Confinement and Phenomenology", Tr

Scientific paper

Coulomb gauge QCD in the first order formalism can be written in terms of a ghost-free, nonlocal action that ensures total color charge conservation via Gauss' law. Making an Ansatz whereby the nonlocal term (the Coulomb kernel) is replaced by its expectation value, the resulting Dyson-Schwinger equations can be derived. With a leading order truncation, these equations reduce to the gap equations for the static gluon and quark propagators obtained from a quasi-particle approximation to the canonical Hamiltonian approach. Moreover a connection to the heavy quark limit can be established, allowing an intuitive explanation for the charge constraint and infrared divergences.

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