Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9861240 | Physics Letters B | 2005 | 8 Pages |
Abstract
We reconcile the 1/Nc expansion with the observed ηâηⲠmass spectrum. The chiral corrections introduced for that purpose are natural and consistent with the octet-singlet mixing angle θ=â(22±1)° extracted from phenomenology in the large Nc limit.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
J.-M. Gérard, E. Kou,