Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-08-28
Phys.Rev. D54 (1996) 2132-2160
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 20 Tables in landscape form, 4 figures. Main changes are: (i) some errors in the Tables and in the relations between
Scientific paper
10.1103/PhysRevD.54.2132
We give a general formulation of the quark-diagram scheme for the nonleptonic weak decays of baryons. We apply it to all the decays of the antitriplet and sextet charmed baryons and express their decay amplitudes in terms of the quark-diagram amplitudes. We have also given parametrizations for the effects of final-state interactions. For SU(3) violation effects, we only parametrize those in the horizontal $W$-loop quark diagrams whose contributions are solely due to SU(3)-violation effects. In the absence of all these effects, there are many relations among various decay modes. Some of the relations are valid even in the presence of final-state interactions when each decay amplitude in the relation contains only a single phase shift. All these relations provide useful frameworks to compare with future experiments and to find out the effects of final-state interactions and SU(3) symmetry violations.
Chau Ling-Lie
Cheng Hai-Yang
Tseng Belle
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