Article ID Journal Published Year Pages File Type
9861240 Physics Letters B 2005 8 Pages PDF
Abstract
We reconcile the 1/Nc expansion with the observed η−η′ mass spectrum. The chiral corrections introduced for that purpose are natural and consistent with the octet-singlet mixing angle θ=−(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
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