Inclusive Δ ++ (1232) and ∑ ± (1385) production in K - p interactions at 32 GeV/ c
Abstract
We have studied inclusive Δ ++ (1232), ∑ + (1385), and ∑ - (1385) baryon resonance production in K - p interactions at 32 GeV/c. The inclusive and topological cross sections are estimated and compared with published results at lower energies. No energy variation of the cross section is observed for Δ ++ (1232) and only a slight decrease is seen in case of ∑ ± (1385). The production properties are investigated through longitudinal and transverse momentum distributions. The Δ ++ (1232) is dominantly produced in the target fragmentation region. The ∑ + (1385) is produced both in the target fragmentation region and in the central region, while the ∑ - (1385) is predominantly produced in the central region. About 20% of the final state protons are produced via a Δ ++ (1232) decay and about 25% of the Λ produced come from the decay of ∑ + (1385) and ∑ - (1385).
- Publication:
-
Zeitschrift fur Physik C Particles and Fields
- Pub Date:
- June 1979
- DOI:
- 10.1007/BF01443696
- Bibcode:
- 1979ZPhyC...3...89W