212 citations · 1.8k across the 34 of their papers we have counts for
6 papers · 1 filter
The nonperturbative quark-gluon vertex
Jonivar Skullerud, Patrick Bowman, Ayse Kizilersu
We show results for the quark-gluon vertex in the Landau gauge, using a mean-field improved Sheikholeslami-Wohlert fermion action. We compute all the three non-zero form factors of…
Modelling the quark propagator
P. O. Bowman, U. M. Heller, D. B. Leinweber +1
The quark propagator is at the core of lattice hadron spectrum calculations as well as studies in other nonperturbative schemes. We investigate the quark propagator with an improve…
Towards the Continuum Limit of the Overlap Quark Propagator in Landau Gauge
J. B. Zhang, F. D. R. Bonnet, P. O. Bowman +2
The properties of the momentum space quark propagator in Landau gauge are examined for the overlap quark action in quenched lattice QCD. Numerical calculations were done on two lat…
Gluon Propagator on Coarse Lattices in Laplacian Gauges
P. O. Bowman, U. M. Heller, D. B. Leinweber +1
The Laplacian gauge is a nonperturbative gauge fixing that reduces to Landau gauge in the asymptotic limit. Like Landau gauge, it respects Lorentz invariance, but it is free of Gri…
Lattice quark propagator with staggered quarks in Landau and Laplacian gauges
P. O. Bowman, U. M. Heller, A. G. Williams
We report on the lattice quark propagator using standard and improved Staggered quark actions, with the standard, Wilson gauge action. The standard Kogut-Susskind action has errors…
Overlap Quark Propagator in Landau Gauge
Frédéric D. R. Bonnet, Patrick O. Bowman, Derek B. Leinweber +2
The properties of the quark propagator in Landau gauge in quenched QCD are examined for the overlap quark action. The overlap quark action satisfies the Ginsparg-Wilson relation an…