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Stability of the pentaquark in a naive string model

Abstract : The pentaquark is studied in a simple model of confinement where the quarks and the antiquark are linked by flux tubes of minimal cumulated length, without any short-range correction nor antisymmetrization constraint. The ground-state is found to be stable against spontaneous dissociation into a meson and a baryon, both in the case of five equal-mass constituents and for a static quark or antiquark surrounded by four equal masses.
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Submitted on : Friday, August 21, 2009 - 11:01:46 AM
Last modification on : Thursday, November 19, 2020 - 12:58:41 PM

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J.-M. Richard. Stability of the pentaquark in a naive string model. Physical Review C, American Physical Society, 2010, 81, pp.015205. ⟨10.1103/PhysRevC.81.015205⟩. ⟨in2p3-00410474⟩



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