Leading order infrared quantum chromodynamics in Coulomb gauge

Details Leading order infrared quantum chromodynamics in Coulomb gauge Leading order infrared quantum chromodynamics in Coulomb gauge

2011-11-25

arxiv.org/abs/1111.6078v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 11 figures

Scientific paper

A truncation scheme for the Dyson-Schwinger equations of quantum chromodynamics in Coulomb gauge within the first order formalism is presented. The truncation is based on an Ansatz for the Coulomb kernel occurring in the action. Results at leading loop order and in the infrared are discussed for both the Yang-Mills and quark sectors. It is found that the resulting equations for the static gluon and quark propagators agree with those derived in a quasi-particle approximation to the canonical Hamiltonian approach. Moreover, a connection to the heavy quark limit is established. The equations are analyzed numerically and it is seen that in both the gluonic and quark sectors, a nontrivial dynamical infrared mass scale emerges.

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