Study of Multiquarks Systems in a Chiral Quark Model
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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\bar q\bar q where the light quarks are in the S=0 I=0 configuration. We study the stability of other multiquark systems as well.
10 pages, sprocl.sty, proceeding of "3th Diquark meeting" Turin october 96
10 pages, sprocl.sty, proceeding of "3th Diquark meeting" Turin october 96