Broken SU(4) symmetry and the baryon resonances
Journal Article
·
· Phys. Rev., D; (United States)
The J/sup P/ = 3/2/sup +/ baryon-resonance mass spectrum, including the charmed states, and the resonance widths are calculated using a broken-SU(4) -symmetric one-baryon-exchange model of the baryon--pseudoscalar-meson forces. The dispersion-theoretic multichannel N/D matrix method is employed to construct the scattering amplitude for each state. The parameters of the theory are a mixing parameter analogous to the SU(3) F to D ratio, the mass of the exchanged baryon, a subtraction-point energy in the dispersion integrals, and the 1/2/sup +/ baryon and pseudoscalar-meson masses including those with nonzero values of charm. The positions and widths are determined for three different sets of predicted masses for those charmed particles.
- Research Organization:
- Department of Physics, Syracuse University, Syracuse, New York 13210
- OSTI ID:
- 7308135
- Journal Information:
- Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:11; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645206 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 1-- (-1987)
645303* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BOOTSTRAP MODEL
BOSON-EXCHANGE MODELS
BOUND STATE
CHARM PARTICLES
COMPOSITE MODELS
DISPERSION RELATIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
LIE GROUPS
MASS SPECTRA
MATHEMATICAL MODELS
N-D METHOD
OBE MODEL
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PERIPHERAL MODELS
POSTULATED PARTICLES
QUARK MODEL
RESONANCE PARTICLES
SCATTERING AMPLITUDES
SPECTRA
STRONG INTERACTIONS
SU GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
Baryon No. = 1-- (-1987)
645303* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Strong Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BOOTSTRAP MODEL
BOSON-EXCHANGE MODELS
BOUND STATE
CHARM PARTICLES
COMPOSITE MODELS
DISPERSION RELATIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
LIE GROUPS
MASS SPECTRA
MATHEMATICAL MODELS
N-D METHOD
OBE MODEL
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PERIPHERAL MODELS
POSTULATED PARTICLES
QUARK MODEL
RESONANCE PARTICLES
SCATTERING AMPLITUDES
SPECTRA
STRONG INTERACTIONS
SU GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS