NONPERTURBATIVE RENORMALIZATION OF THE COMPLETE BASIS OF 4-FERMION OPERATORS AND B-PARAMETERS

Authors
CONTI L DONINI A GIMENEZ V MARTINELLI G TALEVI M VLADIKAS A
Citation
L. Conti et al., NONPERTURBATIVE RENORMALIZATION OF THE COMPLETE BASIS OF 4-FERMION OPERATORS AND B-PARAMETERS, Nuclear physics. B, Proceedings supplement, 63, 1998, pp. 880-882
Citations number
10
Categorie Soggetti
Physics, Particles & Fields
Journal title
Nuclear physics. B, Proceedings supplement → ACNP
ISSN journal
09205632
Volume
63
Year of publication
1998
Pages
880 - 882
Database
ISI
SICI code
0920-5632(1998)63:<880:NROTCB>2.0.ZU;2-Y
Abstract
We present results on the B-parameters B-K, B-7(3/2) and B-8(3/2), at beta = 6.0, with the tree-level Clover action. The renormalization of the complete basis of dimension-six four-fermion operators has been pe rformed nonperturbatively. Our results for B-K and B-7(3/2) are in rea sonable agreement with those obtained with the (unimproved) Wilson act ion. This is not the case for B-8(3/2). We also discuss some subtletie s arising from a recently proposed modified definition of the B-parame ters.