EPJ Web of Conferences
Volume 3, 201019th International IUPAP Conference on Few-Body Problems in Physics
|Number of page(s)||9|
|Published online||12 April 2010|
Elusive multiquark spectroscopy
Laboratoire de Physique Subatomique et Cosmologie, IN2P3-CNRS,
Université Joseph Fourier, INPG, 53, avenue des Martyrs, 38026 Grenoble,
2 Institut de Physique Nucléaire de Lyon, Université de Lyon, IN2P3-CNRS-UCBL, 4, rue Enrico Fermi, 69622 Villeurbanne, France
a e-mail: firstname.lastname@example.org
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.
© Owned by the authors, published by EDP Sciences, 2010
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