NEW IMPROVED OPERATORS - A CONVENIENT REDEFINITION

Authors
BORRELLI A PITTORI C FREZZOTTI R GABRIELLI E
Citation
A. Borrelli et al., NEW IMPROVED OPERATORS - A CONVENIENT REDEFINITION, Nuclear physics. B, 409(2), 1993, pp. 382-396
Citations number
23
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
409
Issue
2
Year of publication
1993
Pages
382 - 396
Database
ISI
SICI code
0550-3213(1993)409:2<382:NIO-AC>2.0.ZU;2-K
Abstract
In this paper we consider a new definition of improved fermion operato rs which is very convenient for numerical QCD simulations with the nea rest-neighbour improved action, and we present the one-loop values of the corresponding renormalization constants. This redefinition include s terms that are formally of order a2 or higher and do not affect the conclusions about order a improvement.