Semileptonic decays of baryons in a relativistic quark model

2006/02/28 by S. Migura, Sascha Migura, D. Merten +5
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epja/i2006-10024-x

published as Eur.Phys.J. A28 (2006) 55 · 8 pages, 10 figures, 2 tables, typos removed

openalex publication_date 2006/04/01 · arxiv created 2006/06/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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.

Citations

• The light-baryon spectrum in a relativistic quark model with instanton-induced quark forces
• Charmed baryons in a relativistic quark model
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)