Stability of multiquarks in a simple string model

Abstract

A simple string model inspired by the strong-coupling regime of Quantum ChromoDynamics is used as a potential for studying the spectrum of multiquark systems with two quarks and two antiquarks, with a careful treatment of the four-body problem. It is found that the ground state is stable, lying below the threshold for dissociation into two isolated mesons.

4 pages, 2 figures, Refs. added, typos corrected, discussion improved, to appear in Phys. Rev. D

References in corpus (1)

• Interactions of multi-quark states in the chromodielectric model

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• An introduction to the quark model
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• Tetraquark resonances, flip-flop and cherry in a broken glass model