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Differential photoproduction cross sections of theΣ0(1385),Λ(1405), andΛ(1520)
- Source :
- Physical Review C. 88
- Publication Year :
- 2013
- Publisher :
- American Physical Society (APS), 2013.
-
Abstract
- We report the exclusive photoproduction cross sections for the Sigma(1385), Lambda(1405), and Lambda(1520) in the reactions gamma + p -> K+ + Y* using the CLAS detector for energies from near the respective production thresholds up to a center-of-mass energy W of 2.85 GeV. The differential cross sections are integrated to give the total exclusive cross sections for each hyperon. Comparisons are made to current theoretical models based on the effective Lagrangian approach and fitted to previous data. The accuracy of these models is seen to vary widely. The cross sections for the Lambda(1405) region are strikingly different for the Sigma+pi-, Sigma0 pi0, and Sigma- pi+ decay channels, indicating the effect of isospin interference, especially at W values close to the threshold.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Current (mathematics)
010308 nuclear & particles physics
Theoretical models
Hyperon
Sigma
Lambda
01 natural sciences
Nuclear physics
Isospin
0103 physical sciences
Effective lagrangian
High Energy Physics::Experiment
Nuclear Experiment
010306 general physics
Differential (mathematics)
Subjects
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 88
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi...........ab69b87b6ebe55c7beb0dd362c6cdb23