A study of the quark-gluon vertex
Jon Ivar Skullerud (UKQCD Collaboration)
TL;DR
This paper investigates the quark-gluon vertex function in quenched QCD using lattice simulations, providing initial results and outlining future plans for extracting the renormalised QCD coupling.
Contribution
First lattice study of the quark-gluon vertex function in Landau gauge with O(a)-improved Wilson fermions at beta=6.0, including future renormalisation plans.
Findings
Initial results for the vertex function in quenched QCD
Discussion of momentum dependence and renormalisation prospects
Plans for extracting the QCD coupling from the vertex
Abstract
We present the first results from a study of the quark--gluon vertex function in the Landau gauge. The results are obtained for quenched QCD with an O(a)-improved Wilson fermion action, at beta=6.0. We discuss plans for further study, including extraction of a renormalised QCD coupling from the momentum dependence of the vertex.
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