Ratio of Λ and Σ0 Photoproduction Cross Sections; High-Mass Hyperon Resonances
Abstract
The ratio of Λ to Σ0 photoproduction cross sections has been measured to be 1.25+/-0.15. The measurement was carried out at center-of-mass angles of about 30° the observed ratio disagrees with predictions of a quark model. In the study of K+ photoproduction for photon energies from 4.0 to 6.1 BeV, we obtained evidence for Y* states at 2360 and 2530 MeV.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 1968
- DOI:
- 10.1103/PhysRevLett.20.221
- Bibcode:
- 1968PhRvL..20..221G