Abstract
The physics of charm has become one of the best laboratories exposing the limitations of the naive constituent quark model and also giving hints into a more mature description of meson spectroscopy, beyond the simple quark–antiquark configurations. In this talk we review some recent studies of multiquark components in the charm sector and discuss in particular exotic and non-exotic four-quark systems, both with pairwise and many-body forces.
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This article is based on the presentations by J. Vijande and J.-M. Richard at the Fifth Workshop on Critical Stability, Erice, Sicily.
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Vijande, J., Valcarce, A., Richard, J.M. et al. Four-Quark Stability. Few-Body Syst 45, 99–103 (2009). https://doi.org/10.1007/s00601-009-0047-2
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DOI: https://doi.org/10.1007/s00601-009-0047-2