Cabibbo-favored nonleptonic decays of charmed baryons

Journal Article · Wed Jul 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.270· OSTI ID:7048413

Xu, Q P; Kamal, A N ^[1]

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1. Theoretical Physics Institute and Department of Physics, University of Alberta, Edmonton, Alberta, T6G2J1 (Canada)

We address several important issues in nonleptonic decays of charmed baryons. These include the treatment of the baryon matrix element of the effective weak Hamiltonian and the factorization in the quark-decay part of the amplitude. We also introduce an on-shell correction to the soft-pion limit of the current-algebra result for {ital S} waves. This correction leads to significant changes in the decay rate and, in particular, the asymmetry parameter. A calculation of Cabibbo-favored {ital B}{sub {ital c}}{r arrow}{ital B}+{ital P}(0{sup {minus}}) decays of {Lambda}{sub {ital c}}{sup +}, {Xi}{sub {ital c}}{sup 0{ital A}}, and {Xi}{sub {ital c}}{sup +{ital A}} (where {ital A} indicates asymmetry in the noncharmed quarks) has been carried out. Good candidates'' for experimental tests have been suggested.

• OSTI ID: 7048413
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:1; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662360* -- Decays of Baryons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
BOSONS
CABIBBO ANGLE
CHARM PARTICLES
CHARMED BARYONS
CURRENT ALGEBRA
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
HAMILTONIANS
LAMBDA C PLUS BARYONS
LIE GROUPS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
MESONS
PARTIAL WAVES
PARTICLE DECAY
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
S WAVES
SU GROUPS
SU-4 GROUPS
SYMMETRY GROUPS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY