Non perturbative renormalization in coordinate space

✍ Scribed by V. Giménez; L. Giusti; S. Guerriero; V. Lubicz; G. Martinelli; S. Petrarca; J. Reyes; B. Taglienti; E. Trevigne

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 313 KB
• Volume: 129-130
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)02598-2

✦ Synopsis

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.