Relativistic mean field approximation to baryons

  • Dmitri Diakonov
Hadron structure and spectroscopy


We stress the importance of the spontaneous chiral symmetry breaking for understanding the low-energy structure of baryons. The Mean Field Approximation to baryons is formulated, which solves several outstanding paradoxes of the naive quark models, and which allows to compute parton distributions at low virtuality in a consistent way. We explain why this approach to baryons leads to the prediction of relatively light exotic pentaquark baryons, in contrast to the constituent models which do not take seriously the importance of chiral symmetry breaking. We briefly discuss why, to our mind, it is easier to produce exotic pentaquarks at low than at high energies.

PACS: 12.38.-t – 12.39.-x – 12.39.Dc – 14.20-c


Elementary Particle Symmetry Breaking Chiral Symmetry Quark Model Parton Distribution 
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Copyright information

© Springer-Verlag, Società Italiana di Fisica 2005

Authors and Affiliations

  • Dmitri Diakonov
    • 1
    • 2
    • 3
  1. 1.Thomas Jefferson National Accelerator Facility, Newport News, VA 23606USA
  2. 2.NORDITA, Blegdamsvej 17, DK-2100 CopenhagenDenmark
  3. 3.St. Petersburg Nuclear Physics Institute, Gatchina, 188 300, St. PetersburgRussia

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