Crossing and duality consistent study of Λ, Σ0, and Λ(1405) production by kaon photoproduction and radiative capture
Abstract
We report a comprehensive analysis of the crossing related reactions p(γ,K+)Y and p(K-,γ)Y for Y=Λ, Σ0, and Λ(1405). Our model, which incorporates both crossing and duality, reproduces all existing Λ and Σ0 cross-section, polarization, and capture branching-ratio data while providing useful constraints for the Λ(1405) magnetic transition moments. While the p(γ,K+)Λ(1405) cross section is predicted to be measurable at CEBAF (σ~1 μb), parity conservation leads to a model-independent suppression of the p(γ,K+)Λ-->(1405) polarization and p(K-,γ)Λ(1405) cross section (σ~1 nb).
- Publication:
-
Physical Review C
- Pub Date:
- February 1991
- DOI:
- 10.1103/PhysRevC.43.452
- Bibcode:
- 1991PhRvC..43..452W
- Keywords:
-
- 25.20.Lj;
- 13.60.Rj;
- 13.75.Jz;
- 11.50.Jg;
- Photoproduction reactions;
- Baryon production;
- Kaon-baryon interactions