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, and the Coulomb-like interaction, the spin-dependent terms and the antisymmetrization constraints are neglected.. 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.

8 pages, 2 figures, minor corrections, references added, to appear in Phys. Rev. C

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Cited by in corpus (15)

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• Exotic hadrons: review and perspectives
• The structure of pentaquarks $P_c^{+}$ in the chiral quark model
• Tetraquarks in large-$N_c$ QCD
• Baryonia and near-threshold enhancements
• Stability of hexaquarks in the string limit of confinement
• Stable heavy pentaquarks in constituent models
• Adiabaticity and color mixing in tetraquark spectroscopy
• The interplay between compact and molecular structures in tetraquarks
• Stability of multiquarks in an improved flip-flop model of confinement
• An introduction to the quark model
• Non-Abelian dynamics and heavy multiquarks, Steiner-tree confinement in hadron spectroscopy
• Stability of pentaquarks with a two- plus three-body chromoelectric interaction
• Baryon spectroscopy and heavy quarks
• The Role of Flavor in Multiquark Spectroscopy