Article ID Journal Published Year Pages File Type
1846845 Nuclear Physics B - Proceedings Supplements 2009 4 Pages PDF
Abstract

A new interpretation of the spectrum of scalar mesons from χb0(9860) down to σ(485) is suggested in which scalar mesons have a and a four-quark component. The four-quark component becomes increasingly important with decreasing quark mass. The flavor singlet light-quark mesons form the wide background which is interspersed with narrow octet states. There are no states beyond the quark-model classification.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics