Final States with Two or More Strange Particles from 4.25-BeVc K-p Interactions

Final states with two or more strange particles produced by 4.25-BeVc K-p interactions were studied in a 5.3-event/μb exposure. A search for Ξ* resonances found only the Ξ*(1530) produced in measurable amounts. The data suggest a Ξ*(2225) with isotopic spin 32. The mass of the φ meson is measured to...
Ausführliche Beschreibung

Final states with two or more strange particles produced by 4.25-BeVc K-p interactions were studied in a 5.3-event/μb exposure. A search for Ξ* resonances found only the Ξ*(1530) produced in measurable amounts. The data suggest a Ξ*(2225) with isotopic spin 32. The mass of the φ meson is measured to be 1021.5±0.8 MeV from Λφ events with φ→K10K20. This result is 3 MeV higher than that found in other experiments using stopping K+ and K- mesons from φ→K+K-. The results of a search for other meson and baryon resonances are presented. Ausführliche Beschreibung