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Renormalization constants of quark operators for the non-perturbatively improved Wilson action

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Renormalization constants of quark operators for the non-perturbatively improved Wilson action

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dc.contributor.author	Becirevic, D.
dc.contributor.author	Giménez Gómez, Vicente
dc.contributor.author	Lubicz, V.
dc.contributor.author	Martinelli, Guido
dc.contributor.author	Papinutto, Mauro
dc.contributor.author	Reyes Gámez, Juan
dc.date.accessioned	2014-09-25T11:47:39Z
dc.date.available	2014-09-25T11:47:39Z
dc.date.issued	2004
dc.identifier.citation	Becirevic, D. Giménez Gómez, Vicente Lubicz, V. Martinelli, G. Papinutto, Mauro Reyes, J. 2004 Renormalization constants of quark operators for the non-perturbatively improved Wilson action Journal of High Energy Physics 2004 08 022-1 022-36
dc.identifier.uri	http://hdl.handle.net/10550/38974
dc.description.abstract	We present the results of an extensive lattice calculation of the renormalization constants of bilinear and four-quark operators for the non-perturbatively O(a)-improved Wilson action. The results are obtained in the quenched approximation at four values of the lattice coupling by using the non-perturbative RI/MOM renormalization method. Several sources of systematic uncertainties, including discretization errors and final volume effects, are examined. The contribution of the Goldstone pole, which in some cases may affect the extrapolation of the renormalization constants to the chiral limit, is non-perturbatively subtracted. The scale independent renormalization constants of bilinear quark operators have been also computed by using the lattice chiral Ward identities approach and compared with those obtained with the RI-MOM method. For those renormalization constants the non-perturbative estimates of which have been already presented in the literature we find an agreement which is typically at the level of 1%.
dc.language.iso	eng
dc.relation.ispartof	Journal of High Energy Physics, 2004, vol. 2004, num. 08, p. 022-1-022-36
dc.subject	Física
dc.title	Renormalization constants of quark operators for the non-perturbatively improved Wilson action
dc.type	journal article	es_ES
dc.date.updated	2014-09-25T11:47:39Z
dc.identifier.doi	10.1088/1126-6708/2004/08/022
dc.identifier.idgrec	041528
dc.rights.accessRights	open access	es_ES