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arXiv · hep-ph/0307003

SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons

M. D. Scadron·G. Rupp·E. van Beveren·F. Kleefeld
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Abstract

By comparing SU(3)-breaking scales of linear mass formulae, it is shown that the lowest vector, axial-vector, and scalar mesons all have a $\bar{q}q$ configuration, while the ground-state octet and decuplet baryons are $qqq$. Also, the quark-level linear $σ$ model is employed to predict similar $\bar{q}q$ and $qqq$ states. Finally, the approximate mass degeneracy of the scalar $a_0$(980) and $f_0$(980) mesons is demonstrated to be accidental.

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M. D. Scadron, G. Rupp, E. van Beveren, F. Kleefeld. 2003-06-30. SU(3) Mass Splittings for $\bar{q}q$ Mesons and $qqq$ Baryons. https://doi.org/10.1063/1.1632205

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