Phenomenological Lagrangian for nonleptonic charmed-meson decays

Journal Article · Fri Mar 01 04:00:00 EST 1985 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.31.1055· OSTI ID:5991356

Kamal, A N; Chong-Huah, L; Rahman, M

A gauged chiral-Lagrangian model for charmed-meson decays is proposed. The 0/sup +/ uncharmed mesons are included in the model to account for S-wave hadronic final-state interactions. All the hadron fields are incorporated into the phenomenological Lagrangian through the general framework proposed by Coleman, Wess, and Zumino. The model correctly predicts the branching ratios of various two-body D-meson decay modes in both Cabibbo-angle-favored and Cabibbo-angle-suppressed channels, with the only exception of B(D-bar /sup 0/..-->..K/sup +/K/sup -/)/B(D /sup 0/..--> pi../sup +/..pi../sup -/). We have also shown that the prediction of S-wave threshold parameters in ..pi pi.. scattering can be in good agreement with data, if the SU(3)-symmetry-breaking effect in 0/sup +/ uncharmed-meson decay vertices is suitably adjusted.

• Research Organization: Theoretical Physics Institute and Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2J1
• OSTI ID: 5991356
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 31:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CABIBBO ANGLE
CHARM PARTICLES
CHARMED MESON RESONANCES
CHIRALITY
DECAY
ELEMENTARY PARTICLES
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LAGRANGIAN FUNCTION
LIE GROUPS
MESON RESONANCES
MESON-MESON INTERACTIONS
MESONS
PARTIAL WAVES
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PION-PION INTERACTIONS
RESONANCE PARTICLES
S WAVES
SCATTERING
SU GROUPS
SU-3 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY