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Stability of the pentaquark in a naive string model
release_imut6rg6xbd27ftswnp26k7xli
by
Jean-Marc Richard
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as a article
.
2009
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.
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0908.2944v1
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