Study of Multiquarks Systems in a Chiral Quark Model
M. Genovese, J. -M. Richard, S. Pepin, Fl. Stancu
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 contributions. In this model the (u,d) diquark S=0 I=0 is strongly bound (more than for the chromomagnetic interaction) and this leads to a bound heavy tetraquark QQ q q where the light quarks are in the S=0 I=0 configuration. We study the stability of other multiquark systems as well.
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