Semileptonic decays of baryons in a relativistic quark model

Details Semileptonic decays of baryons in a relativistic quark model Semileptonic decays of baryons in a relativistic quark model

2006-02-16

arxiv.org/abs/hep-ph/0602152v2

Eur.Phys.J. A28 (2006) 55

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 10 figures, 2 tables, typos removed

Scientific paper

10.1140/epja/i2006-10024-x

We calculate semileptonic decays of light and heavy baryons in a relativistically covariant constituent quark model. The model is based on the Bethe-Salpeter-equation in instantaneous approximation. It generates satisfactory 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 electronic and muonic semileptonic decays of baryons. We thus obtain form factor ratios and decay rates in good agreement with experiment.

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