ANOMALOUS COMMUTATOR CORRECTIONS TO SUM-RULES

Authors
MUNIAIN JP WUDKA J
Citation
Jp. Muniain et J. Wudka, ANOMALOUS COMMUTATOR CORRECTIONS TO SUM-RULES, Physical review. D. Particles and fields, 52(9), 1995, pp. 5194-5201
Citations number
33
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
52
Issue
9
Year of publication
1995
Pages
5194 - 5201
Database
ISI
SICI code
0556-2821(1995)52:9<5194:ACCTS>2.0.ZU;2-2
Abstract
In this paper we consider the contributions of anomalous commutators t o various QCD sum rules. Using a combination of the Bjorken-Johnson-Lo w limit with the operator product expansion the results are presented in terms of the vacuum condensates of gauge-invariant operators. It is demonstrated that the anomalous contributions are non-negligible and reconcile various apparently contradictory calculations.