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Multiquark Systems in a Constituent Quark Model with Chiral Dynamics

S. Pepin·Fl. Stancu·M. Genovese·J. -M. Richard
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Abstract

We discuss the stability of multiquark systems within the recent model of Glozman et al. where the chromomagnetic hyperfine interaction is replaced by pseudoscalar-meson exchange. We find that such an interaction binds a heavy tetraquark system $QQ\bar q\bar q$ ($Q=c, b$ and $q=u, d)$ by $0.2-0.4$ GeV. This is at variance with results of previous models where $cc\bar q\bar q$ is unstable.

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S. Pepin, Fl. Stancu, M. Genovese, J. -M. Richard. 1996-08-27. Multiquark Systems in a Constituent Quark Model with Chiral Dynamics. https://arxiv.org/abs/nucl-th/9608058

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