A lattice study of the quark propagator and vertex function
Jon Ivar Skullerud
TL;DR
This paper presents a lattice QCD study of the quark propagator and vertex function, providing initial results for quark mass and renormalisation constants using improved actions and gauge fixing.
Contribution
It reports the first results on the quark pole mass and field renormalisation constant from lattice simulations with improved actions.
Findings
Initial estimates of quark pole mass
Field renormalisation constant results
Use of improved Sheikholeslami-Wohlert action
Abstract
We report on the status of a study of the quark propagator and quark-gluon vertex in momentum space. Quark propagators have been generated at beta=6.0 using the O(a)-improved Sheikholeslami-Wohlert action and fixed to the Landau gauge. The first results for the quark pole mass and field renormalisation constant are reported, and plans for future work are presented.
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