Analysis of two-body decays of charmed baryons using the quark-diagram scheme

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.2132· OSTI ID:288758

Chau, L ^[1]; Cheng, H; Tseng, B ^[2]

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1. Physics Department, University of California at Davis, California 95616 (United States)
2. Institute of Physics, Academia Sinica, Taipei, Taiwan 115 (Japan)

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 {ital 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 the effects of final-state interactions and SU(3) symmetry violations. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 288758
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARMED BARYONS
FINAL-STATE INTERACTIONS
HADRONIC PARTICLE DECAY
LEPTONIC DECAY
PHASE SHIFT
QUARK MODEL
TWO-BODY PROBLEM
WAVE FUNCTIONS