Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/57178
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Type: Journal article
Title: Stout-link smearing in lattice fermion actions
Author: Zhang, J.
Moran, P.
Bowman, P.
Leinweber, D.
Williams, A.
Citation: Physical Review. D. Particles, Fields, Gravitation and Cosmology, 2009; 80(7):1-7
Publisher: American Physical Soc
Issue Date: 2009
ISSN: 1550-7998
1550-2368
Statement of
Responsibility: 
J. B. Zhang, Peter J. Moran, Patrick O. Bowman, Derek B. Leinweber, and Anthony G. Williams
Abstract: The properties of the momentum-space quark propagator in the Landau gauge are studied for the overlap quark action in quenched lattice QCD. Numerical calculations are performed over four ensembles of gauge configurations, where three are smeared using either 1, 3, or 6 sweeps of stout-link smearing.We calculate the nonperturbative wave-function renormalization function ZðpÞ and the nonperturbative mass function MðpÞ for a variety of bare quark masses.We find that the wave-function renormalization function is slightly sensitive to the number of stout-link smearing sweeps. For the mass function we find the effect of the stout-link smearing algorithm to be small for moderate to light bare quark masses. For a heavy bare quark mass we find a strong dependence on the number of smearing sweeps.
Rights: ©2009 American Physical Society
RMID: 0020093371
DOI: 10.1103/PhysRevD.80.074503
Appears in Collections:Physics publications

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