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Physical Review C 81 (2010) 015205
Stability of the pentaquark in a naive string model
J.-M. Richard1, 2

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.
1 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 :  IPNL - Institut de Physique Nucléaire de Lyon
Physique/Physique des Hautes Energies - Phénoménologie
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