Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 6: Theory II

HK 6.5: Vortrag

Montag, 8. März 2004, 17:15–17:30, E

Semileptonic Decays of Baryons in a Covariant Quark Model — •Sascha Migura, Dirk Merten, Bernard Metsch, and Herbert-R. Petry — Helmholtz-Institut für Strahlen- und Kernphyik, Abteilung Theorie, Nußallee 14-16, D-53115 Bonn

We are calculating semileptonic decays of baryons in a relativistic covariant constituent-quark model which is based on the Bethe-Salpeter-equation in instantaneous approximation. This model generates mass spectra for mesons and baryons up to the highest observable energies.

Without introducing additional free parameters we compute on this basis helicity amplitudes of semileptonic decays. We thus obtain decay widths for semileptonic decays in good agreement with experiment.