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arXiv · hep-ph/0309319

The ${q}\bar{q}$ spectra and the structure of the scalar mesons

J. Vijande·F. Fernandez·A. Valcarce
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Abstract

The ${q}\bar{q}$ spectrum is studied within a chiral constituent quark model. It provides with a good fit of the available experimental data from light (vector and pseudoscalar) to heavy mesons including some recent results on charmonium. The $0^{++}$ light mesons and the new $D$ states measured at different factories cannot be described as $q\bar q$ pairs and a tetraquark structure is suggested.

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J. Vijande, F. Fernandez, A. Valcarce. 2003-10-13. The ${q}\bar{q}$ spectra and the structure of the scalar mesons. https://doi.org/10.1063/1.1799731

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