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Multiquark systems in a constituent quark model with chiral dynamics

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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http://hal.in2p3.fr/in2p3-00139416
Contributor : Lpsc Bibliotheque <>
Submitted on : Friday, March 30, 2007 - 4:03:59 PM
Last modification on : Thursday, November 19, 2020 - 12:58:48 PM

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S. Pepin, F. Stancu, M. Genovese, J.-M. Richard. Multiquark systems in a constituent quark model with chiral dynamics. 2nd International Conference on Quark Confinement and the Hadron Spectrum, Jun 1996, Como, Italy. ⟨in2p3-00139416⟩

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