INSTANTON EFFECTS IN THE LIGHT-QUARK MASSES DETERMINATION FROM QCD SUM-RULES

Authors
GABRIELLI E NASON P
Citation
E. Gabrielli et P. Nason, INSTANTON EFFECTS IN THE LIGHT-QUARK MASSES DETERMINATION FROM QCD SUM-RULES, Physics letters. Section B, 313(3-4), 1993, pp. 430-432
Citations number
12
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
313
Issue
3-4
Year of publication
1993
Pages
430 - 432
Database
ISI
SICI code
0370-2693(1993)313:3-4<430:IEITLM>2.0.ZU;2-I
Abstract
We consider the determination of the light-quark masses obtained from QCD sum rules. We show that small-size instantons contribute sizeable corrections to these sum rules. It therefore seems impossible to provi de an accurate determination of the light-quark masses in the QCD sum rules framework.