. Quarkonium-working and . Group, Heavy Quarkonium Physics, arXiv:hep- ph, 412158.

A. Tomaradze, arXiv:hep-ex/0410090; C. Patrignani [FNAL-E835 Collaboration, pp.hep-ex, 410085.

A. De-rujula, H. Georgi, and S. L. Glashow, Molecular Charmonium: A New Spectroscopy?, Physical Review Letters, vol.38, issue.7, p.317, 1977.
DOI : 10.1103/PhysRevLett.38.317

W. A. Bardeen, E. J. Eichten, and C. T. Hill, Chiral multiplets of heavy-light mesons, Physical Review D, vol.68, issue.5, p.54024, 2003.
DOI : 10.1103/PhysRevD.68.054024

T. Barnes, F. E. Close, and H. J. Lipkin, Implications of a DK molecule at 2.32 GeV, Physical Review D, vol.68, issue.5, p.54006, 2003.
DOI : 10.1103/PhysRevD.68.054006

B. Nicolescu and J. P. De-melo, arXiv:hep-ph/0407088, Phys. Rev. D, vol.70, p.54009, 2004.

C. Alt, Baryon Resonance in Proton-Proton Collisions at the CERN SPS, Physical Review Letters, vol.92, issue.4, p.42003, 2004.
DOI : 10.1103/PhysRevLett.92.042003

M. I. Adamovich, -nucleus interactions, Physical Review C, vol.70, issue.2, p.22201, 2004.
DOI : 10.1103/PhysRevC.70.022201

URL : https://hal.archives-ouvertes.fr/in2p3-00002228

D. Diakonov, arXiv:hep-ph/0406043, and refs. therein

J. Carlson and V. R. Pandharipande, Absence of exotic hadrons in flux-tube quark models, Physical Review D, vol.43, issue.5, p.1652, 1991.
DOI : 10.1103/PhysRevD.43.1652

J. A. Wheeler, 219; A. Ore, Phys. Rev. 70 (1946) 90; E.A. Hylleraas and A. Ore, Phys. Rev. 71 (1947) 493; for a review, Ann. N.Y. Acad. Sci, vol.48, 1946.