Masses of the dibaryon resonances
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5125888
The ..lambda..p(/sup 3/S/sub 1/) resonance at E = 2054 MeV and the N..sigma..(/sup 3/S/sub 1/, I = 1/2) resonance at E = 2129 MeV are treated as members of the representations )8/sub a/) and )10) with a mixing angle thetanot =0. The exact value of theta is uniquely determined by the mass of the /sup 3/S/sub 1/ resonance in the ..sigma../sup +/..xi../sup 0/ system. A /sup 1/S/sub 0/ level is also predicted in the ..sigma sigma.. system (I = 2) near the ..sigma sigma.. threshold. It is shown that the Gell-Mann--Okubo mass formula is consistent with the existence of a large number of near-threshold states, in particular, in the ..lambda sigma.., N..xi.., and ..sigma xi.. systems.
- Research Organization:
- Institute of Theoretical and Experimental Physics, State Commission on the Use of Atomic Energy
- OSTI ID:
- 5125888
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 35:2; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645207* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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LAMBDA PARTICLES
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Baryon No. Greater than 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON RESONANCES
BARYONS
DIBARYON RESONANCES
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HYPERONS
LAMBDA PARTICLES
LIE GROUPS
MASS FORMULAE
MASS SPECTRA
OKUBO MASS FORMULA
RESONANCE PARTICLES
SIGMA PARTICLES
SPECTRA
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS