# One-loop renormalization of fermionic currents with the overlap-Dirac operator

Alexandrou, C. and Follana, E. and Panagopoulos, H. and Vicari, E. (2000) One-loop renormalization of fermionic currents with the overlap-Dirac operator. Nuclear Physics B, 580 (1-2). pp. 394-406. ISSN 1873-1562

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## Abstract

We compute the one-loop lattice renormalization of the two-quark operators $\bar{\psi} \Gamma \psi$, where $\Gamma$ denotes the generic Dirac matrix, for the lattice formulation of QCD using the overlap-Dirac operator. We also study the renormalization of quark bilinears which are more extended and have better chiral properties. Finally, we present improved estimates of these renormalization constants, coming from cactus resummation and from mean field perturbation theory.

Item Type: Article Imported from arXiv Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA dott.ssa Sandra Faita 11 Feb 2014 15:29 11 Feb 2014 15:29 http://eprints.adm.unipi.it/id/eprint/1900

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