Abstract
More and more hadron states are found to be difficult to be accommodated by the quenched quark models which describe baryons as 3-quark states and mesons as antiquark-quark states. Dragging out an antiquark-quark pair from the gluon field in hadrons should be an important excitation mechanism for hadron spectroscopy. Our recent progress on the penta-quark states with hidden charm and beauty is reviewed.
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Zou, BS. Penta-Quark States with Hidden Charm and Beauty. Few-Body Syst 54, 141–144 (2013). https://doi.org/10.1007/s00601-012-0368-4
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DOI: https://doi.org/10.1007/s00601-012-0368-4