NONPERTURBATIVE RENORMALIZATION OF 2-QUARK OPERATORS WITH AN IMPROVEDLATTICE FERMION ACTION

Authors
MARTINELLI G PETRARCA S SACHRAJDA CT VLADIKAS A
Citation
G. Martinelli et al., NONPERTURBATIVE RENORMALIZATION OF 2-QUARK OPERATORS WITH AN IMPROVEDLATTICE FERMION ACTION, Physics letters. Section B, 311(1-4), 1993, pp. 241-248
Citations number
15
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
311
Issue
1-4
Year of publication
1993
Pages
241 - 248
Database
ISI
SICI code
0370-2693(1993)311:1-4<241:NRO2OW>2.0.ZU;2-I
Abstract
We determine the renormalization constants of two-quark operators for the clover action on the lattice, using chiral Ward identities. These renormalization constants are required for the determination of physic al quantities, such as f(pi), f(rho)-1 and the quark masses from latti ce calculations. Our results show that at beta=6.0, with a sample of e ighteen gauge configurations, it is possible to determine the renormal ization constants with an error of a few percent.