Decay of pseudoscalars into lepton pairs and Large-N-c QCD

Authors
Knecht, M Peris, S Perrottet, M
Citation
M. Knecht et al., Decay of pseudoscalars into lepton pairs and Large-N-c QCD, PHYS REV L, 83(25), 1999, pp. 5230-5233
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
25
Year of publication
1999
Pages
5230 - 5233
Database
ISI
SICI code
0031-9007(199912)83:25<5230:DOPILP>2.0.ZU;2-T
Abstract
The counterterm combination that describes the decay of pseudoscalar mesons into charged lepton pairs at lowest order in chiral perturbation theory is considered within the framework of QCD in the limit of a large number of c olors N-c. When further restricted to the lowest meson dominance approximat ion to large-N-c QCD, our results agree well with the available experimenta l data.