We present an exploratory study of a gauge-invariant non-perturbative renormalization technique. The renormalization conditions are imposed on correlation functions of composite operators in coordinate space on the lattice. Numerical results for bilinears obtained with overlap and O(a)-improved Wilson fermions are presented. The measurement of the quark condensate is also discussed. © 2004 Published by Elsevier B.V.
Non perturbative renormalization in coordinate space / Gimemenez, V.; Giusti, L.; Guerriero, S.; Lubicz, V.; Martinelli, G.; Petrarca, S.; Reyes, J.; Taglienti, B.; Trevigne, E.. - In: NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS. - ISSN 0920-5632. - 129-130:(2004), pp. 411-413. [10.1016/S0920-5632(03)02598-2]
Non perturbative renormalization in coordinate space
Martinelli G.;
2004-01-01
Abstract
We present an exploratory study of a gauge-invariant non-perturbative renormalization technique. The renormalization conditions are imposed on correlation functions of composite operators in coordinate space on the lattice. Numerical results for bilinears obtained with overlap and O(a)-improved Wilson fermions are presented. The measurement of the quark condensate is also discussed. © 2004 Published by Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
