QCD SUM-RULES AND CHIRAL LOGARITHMS

Citation
Sh. Lee et al., QCD SUM-RULES AND CHIRAL LOGARITHMS, Physics letters. Section B, 348(3-4), 1995, pp. 263-269
Citations number
20
Categorie Soggetti
Physics
Journal title
ISSN journal
03702693
Volume
348
Issue
3-4
Year of publication
1995
Pages
263 - 269
Database
ISI
SICI code
0370-2693(1995)348:3-4<263:QSACL>2.0.ZU;2-U
Abstract
Standard QCD sum-rule analyses of the nucleon mass give results that a re inconsistent with chiral perturbation theory due to an overly simpl e continuum ansatz on the phenomenological side of the sum rule. We sh ow that a careful treatment of the continuum, including pi-N states an d other states with virtual pions, resolves the inconsistency associat ed with chiral logs.