Stability of the pentaquark in a naive string model

Jean-Marc Richard
2010 Physical Review C  
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.
doi:10.1103/physrevc.81.015205 fatcat:rafvmx57ojcdfjsoubqe3xmide