1993/09/15 by P. Żenczykowski, P. Zenczykowski · 6 citations
Engineering · Physics and Astronomy · #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.50.402
published as Phys.Rev. D50 (1994) 402-411 · 25 pages, LATEX, 1643/PH IFJ Krakow
arxiv created 1993/09/15 · openalex publication_date 1994/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Quark and pole models of nonleptonic decays of charmed baryons are analyzed from the point of view of their symmetry properties. The symmetry structure of the parity-conserving amplitudes that corresponds to the contribution of the ground-state intermediate baryons is shown to differ from the one hitherto employed in the symmetry approach. It is pointed out that the ``subtraction'' of sea quark effects in hyperon decays leads to an estimate of W-exchange contributions in charmed baryon decays that is significantly smaller than naively expected on the basis of SU(4). An SU(2)W constraint questioning the reliability of the factorization technique is exhibited. Finally, a successful fit to the available data is presented.