Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-09-17
Phys.Rev. D57 (1998) 5632-5652
Physics
High Energy Physics
High Energy Physics - Phenomenology
49 pages, LaTeX-file
Scientific paper
10.1103/PhysRevD.57.5632
Exclusive nonleptonic decays of bottom and charm baryons are studied within a relativistic three-quark model with a Gaussian shape for the momentum dependence of the baryon-three-quark vertex. We include factorizing as well as nonfactorizing contributions to the decay amplitudes. For heavy-to-light transitions Q -> q u d the total contribution of the nonfactorizing diagrams amount up to approximately 60% of the factorizing contributions in amplitude, and up to approximately 30% for b -> c u d transitions. We calculate the rates and the polarization asymmetry parameters for various nonleptonic decays and compare them to existing data and to the results of other model calculations.
Ivanov Michael A.
Körner Juergen G.
Lyubovitskij Valery E.
Rusetsky A. G.
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