151 citations · 426 across the 10 of their papers we have counts for
10 papers
Role of the Wilson mass parameter in the overlap Dirac topological charge density
Peter J. Moran, Derek B. Leinweber, J. B. Zhang
The negative Wilson mass parameter is an input parameter to the overlap Dirac operator. We examine the extent to which the topological charge density, revealed by the overlap defin…
Stout-link smearing in lattice fermion actions
J. B. Zhang, Peter J. Moran, Patrick O. Bowman +2
The properties of the momentum space quark propagator in Landau gauge are studied for the overlap quark action in quenched lattice QCD. Numerical calculations are performed over fo…
Precision electromagnetic structure of decuplet baryons in the chiral regime
S. Boinepalli, D. B. Leinweber, P. J. Moran +3
The electromagnetic properties of the baryon decuplet are calculated in quenched QCD on a 20^3 x 40 lattice with a lattice spacing of 0.128 fm using the fat-link irrelevant clover…
Light quark electromagnetic structure of baryons
J. N. Hedditch, B. G. Lasscock, D. B. Leinweber +3
Fascinating aspects of the light quark-mass behavior of baryon electromagnetic form factors are highlighted. Using FLIC fermions on quenched -improv…
Systematic uncertainties in the precise determination of the strangeness magnetic moment of the nucleon
D. B. Leinweber, S. Boinepalli, A. W. Thomas +4
Systematic uncertainties in the recent precise determination of the strangeness magnetic moment of the nucleon are identified and quantified. In summary, G_M^s = -0.046 \pm 0.019 μ…
Hadron Properties with FLIC Fermions
J. M. Zanotti, D. B. Leinweber, W. Melnitchouk +2
The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative O(a)-improvement in lattice fermion actions offering near continuum results at finite la…
Precise determination of the strangeness magnetic moment of the nucleon
D. B. Leinweber, S. Boinepalli, I. C. Cloet +5
By combining the constraints of charge symmetry with new chiral extrapolation techniques and recent low mass lattice QCD simulations of the individual quark contributions to the ma…
Observing Chiral Nonanalytic Behavior with FLIC Fermions
D. B. Leinweber, A. W. Thomas, A. G. Williams +3
First results from lattice QCD revealing the chiral nonanalytic behavior of nucleon and Delta baryon magnetic moments are presented. Numerical simulations in the light quark mass r…
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…
Hadron Masses From Novel Fat-Link Fermion Actions
J. M. Zanotti, S. Bilson-Thompson, F. D. R. Bonnet +6
The hadron mass spectrum is calculated in lattice QCD using a novel fat-link clover fermion action in which only the irrelevant operators in the fermion action are constructed usin…