Production of Θ+ in γ+D→ Λ+ Θ+ and γ+D→ Σ+ Θ+ reactions
Abstract
The γ+D→ Λ+ Θ+ and γ+D→ Σ+ Θ+ reactions can be used to determine the width of Θ+ almost model independently. We calculate the differential cross sections of the γ+D → Λ+ Θ+ , γ+D→ Σ+ Θ+ and relevant background reactions in the photon energy range 1.2⩽ Eγ ⩽2.6 GeV . We determine the most favorable kinematic conditions and observables for the experimental studies of Θ+ in the considered processes. We argue that a comparison of the γ+D→ Λ+ Θ+ and γ+D→ Σ+ Θ+ cross sections should unambiguously determine isospin of Θ+ .
- Publication:
-
Physical Review C
- Pub Date:
- June 2004
- DOI:
- 10.1103/PhysRevC.69.065203
- arXiv:
- arXiv:hep-ph/0402060
- Bibcode:
- 2004PhRvC..69f5203G
- Keywords:
-
- 13.60.Rj;
- 14.20.Jn;
- 25.20.Lj;
- Baryon production;
- Hyperons;
- Photoproduction reactions;
- High Energy Physics - Phenomenology
- E-Print:
- 22 pages, 9 figures. Final published version