The effect of the ultraviolet part of the gluon propagator on the heavy quark propagator

Abstract

We revisit our recently proposed formalism for dealing with the heavy quark limit of the quark Dyson-Schwinger equation. An ambiguity inherent in the original version of method is identified and resolved. Our reanalysis illustrates the importance of correctly accounting for the effect of hard gluon momenta on the heavy quark self energy in the vicinity of the bare fermion mass pole.

9 pages and one postscript figure

References in corpus (3)

• Semileptonic decays of heavy mesons
• Heavy- to light-meson transition form factors
• The analytic structure of heavy quark propagators

Cited by in corpus (5)

• Analytic properties of the Landau gauge gluon and quark propagators
• The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
• On Gribov's supercriticality picture of quark confinement
• Finite volume effects in a quenched lattice-QCD quark propagator
• Heavy quark confinement from Dyson Schwinger equations