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Berlin 2005 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 24: Elektromagnetische und Hadronische Proben

HK 24.4: Talk

Tuesday, March 8, 2005, 15:00–15:15, TU MA001

Chiral symmetry and resonances in QCD — •Matthias F.M. Lutz1 and Evgueni E. Kolomeitsev21GSI, Planck Str. 1, D-64289 Darmstadt — 2The Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen

We study the formation of resonances in terms of the chiral SU(3) Lagrangian. At leading order parameter-free predictions are obtained for the scattering of Goldstone bosons off any hadron once we insist on approximate crossing symmetry of the unitarized scattering amplitude. A wealth of empirically established resonances are recovered and so far unseen resonances are predicted.

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