Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/11165
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DC Field | Value | Language |
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dc.contributor.author | Skullerud, J. | - |
dc.contributor.author | Leinweber, D. | - |
dc.contributor.author | Williams, A. | - |
dc.date.issued | 2001 | - |
dc.identifier.citation | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2001; 64(7):074508-1-074508-9 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.issn | 0556-2821 | - |
dc.identifier.uri | http://hdl.handle.net/2440/11165 | - |
dc.description.abstract | We extend an earlier study of the Landau gauge quark propagator in quenched QCD where we used two forms of the O(a)-improved propagator with the Sheikholeslami-Wohlert quark action. In the present study we use the nonperturbative value for the clover coefficient csw and mean-field improvement coefficients in our improved quark propagators. We compare this with our earlier results which used the mean-field csw and tree-level improvement coefficients for the propagator. We also compare three different implementations of tree-level correction: additive, multiplicative, and hybrid. We show that the hybrid approach is the most robust and reliable and can successfully deal even with strong ultraviolet behavior and zero crossing of the lattice tree-level expression. We find good agreement between our improved quark propagators when using the appropriate nonperturbative improvement coefficients and hybrid tree-level correction. We also present a simple extrapolation of the quark mass function to the chiral limit. | - |
dc.description.statementofresponsibility | Jonivar Skullerud, Derek B. Leinweber and Anthony G. Williams | - |
dc.language.iso | en | - |
dc.publisher | American Physical Soc | - |
dc.rights | ©2001 The American Physical Society | - |
dc.source.uri | http://dx.doi.org/10.1103/physrevd.64.074508 | - |
dc.title | Nonperturbative improvement and tree-level correction of the quark propagator | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1103/PhysRevD.64.074508 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Leinweber, D. [0000-0002-4745-6027] | - |
dc.identifier.orcid | Williams, A. [0000-0002-1472-1592] | - |
Appears in Collections: | Aurora harvest 2 Special Research Centre for the Subatomic Structure of Matter publications |
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hdl_11165.pdf | Published version | 424.56 kB | Adobe PDF | View/Open |
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