Matrix elements of Delta S = 2 operators with Wilson fermions
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Matrix elements of Delta S = 2 operators with Wilson fermions

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Matrix elements of Delta S = 2 operators with Wilson fermions

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dc.contributor.author Becirevic, D.
dc.contributor.author Boucaud, Ph.
dc.contributor.author Giménez Gómez, Vicente
dc.contributor.author Lubicz, V.
dc.contributor.author Martinelli, Guido
dc.contributor.author Papinutto, Mauro
dc.date.accessioned 2014-09-25T12:11:36Z
dc.date.available 2014-09-25T12:11:36Z
dc.date.issued 2002
dc.identifier.uri http://hdl.handle.net/10550/38982
dc.description.abstract We test the recent proposal of using the Ward identities to compute the K-0 - (K) over bar (0) mixing amplitude with Wilson fermions, without the problem of spurious lattice subtractions. From our simulations, we observe no difference between results obtained with and without subtractions. From the standard study of the complete set of DeltaS = 2 operators, we quote the following (preliminary) results: B-K((MS) over bar) (2 GeV) = 0.70(10), (O-tau)(K-->pipi)((I=2)) = 0.10(2)(1)GeV3, <O-8>((I=2))(K-->pipi) = 0.49(6)(0)GeV3.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B-Proceedings Supplements, 2002, vol. 106, p. 326-328
dc.source Becirevic, D. Boucaud, Ph. Giménez Gómez, Vicente Lubicz, V. Martinelli, G. Papinutto, Mauro 2002 Matrix elements of Delta S = 2 operators with Wilson fermions Nuclear Physics B-Proceedings Supplements 106 326 328
dc.subject Física
dc.title Matrix elements of Delta S = 2 operators with Wilson fermions
dc.type journal article es_ES
dc.date.updated 2014-09-25T12:11:36Z
dc.identifier.doi http://dx.doi.org/10.1016/S0920-5632(01)01703-0
dc.identifier.idgrec 041496
dc.rights.accessRights open access es_ES

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