Light quark masses from lattice quark propagators at large momenta
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Light quark masses from lattice quark propagators at large momenta

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Light quark masses from lattice quark propagators at large momenta

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dc.contributor.author Giménez Gómez, Vicente
dc.contributor.author Martinelli, Guido
dc.contributor.author Lubicz, V.
dc.contributor.author Becirevic, D.
dc.date.accessioned 2014-09-26T10:58:16Z
dc.date.available 2014-09-26T10:58:16Z
dc.date.issued 2000
dc.identifier.uri http://hdl.handle.net/10550/39008
dc.description.abstract We compute nonperturbatively the average up-down and strange quark masses from the large momentum (short-distance) behavior of the quark propagator in the Landau gauge. This method, which has never been applied so far, does not require the explicit calculation of the quark mass renormalization constant. Calculations were performed in the quenched approximation, by using O(a) improved Wilson fermions. The main results of this study are m(l)(RI)(2 GeV) = 5.8(6) MeV and m(s)(RI)(2 GeV) = 136(11) MeV. Using the relations between different schemes, obtained from the available four-loop anomalous dimensions, we also find m(l)(RGI) = 7.6(8) MeV and m(s)(RGI) = 177(14) MeV, and the modified minimal subtraction scheme (<(MS)over bar>) masses m(l)(<(MS)over bar>)(2 GeV) = 4.8(5) MeV and m(s)(<(MS)over bar>)(2 GeV) = 111(9) MeV.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2000, vol. 61, num. 11, p. 114507-1-114507-10
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Giménez Gómez, Vicente 2000 Light quark masses from lattice quark propagators at large momenta Physical Review D 61 11 114507-1 114507-10
dc.subject Partícules (Física nuclear)
dc.title Light quark masses from lattice quark propagators at large momenta
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-09-26T10:58:16Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.61.114507
dc.identifier.idgrec 041506

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