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IUPAP Conference on Few-Body Problems in Physics, Bonn : Allemagne (2009)
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Elusive multiquark spectroscopy
J.-M. Richard1, 2
(2010)

A review is presented of past and recent attempts to build multiquark states within current models already describing ordinary mesons and baryons. This includes: coherence in the chromomagnetic interaction, tetraquarks with two heavy quarks, Steiner-tree models of confinement, and hadronic molecules, in particular in the hidden-charm sector. Some emphasis is put on the difficulties encountered when extrapolating toward higher configurations the dynamics of confining forces, starting from the simple case of a quark and an antiquark, or three quarks in a colour singlet.
1 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 :  IPNL - Institut de Physique Nucléaire de Lyon
Theorie
Physique/Physique des Hautes Energies - Phénoménologie
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