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Leptonic decays of J/psi and exact spectral-function sum rules

Journal Article · · Phys. Rev., D; (United States)
Five exact spectral-function sum rules for vector currents are presented. A discrepancy between the Weinberg sum rules and the leptonic decays of the J/psi vector meson is resolved. This provides a concrete example illustrating the usefulness of the asymptotically-free-field-theory approach to formulate spectral-function sum rules.
Research Organization:
Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7 Canada
OSTI ID:
7288934
Journal Information:
Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 16:3; ISSN PRVDA
Country of Publication:
United States
Language:
English