Four-quark stability

Abstract

The physics of charm has become one of the best laboratories exposing the limitations of the naive constituent quark model and also giving hints into a more mature description of meson spectroscopy, beyond the simple quark--antiquark configurations. In this talk we review some recent studies of multiquark components in the charm sector and discuss in particular exotic and non-exotic four-quark systems, both with pairwise and many-body forces.

6 pages. Article based on the presentations by J. Vijande and J.-M. Richard at the Fifth Workshop on Critical Stability, Erice, Sicily

References in corpus (11)

• Exotica
• A new look at scalar mesons
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Evidence for diquarks in lattice QCD
• Detailed Analysis of the Tetraquark Potential and Flip-Flop in SU(3) Lattice QCD
• Stability of multiquarks in a simple string model
• Open-charm meson spectroscopy
• Do $c\bar{c}n\bar{n}$ bound states exist?
• Production and detection of doubly charmed tetraquarks
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• Exciting Developments in Hadron Spectroscopy

Cited by in corpus (7)

• The Hyperspherical Four-Fermion Problem
• Spectroscopy of Exotic Hadrons Formed from Dynamical Diquarks
• Tetraquark resonances with the triple flip-flop potential, decays in the cherry in a broken glass approximation
• Stability of the pentaquark in a naive string model
• Lattice QCD static potentials of the meson-meson and tetraquark systems computed with both quenched and full QCD
• Exotic Charmonium and Bottomonium-like Resonances
• A helpful analogy between the covalent bond and Particle Spectroscopy