Final States with Two or More Strange Particles from4.25−BeVcK−pInteractions

Abstract

Final states with two or more strange particles produced by $4.25-\frac{\mathrm{BeV}}{c}$ $K^{-}p$ interactions were studied in a 5.3-event/μb exposure. A search for ${\Xi }^{*}$ resonances found only the ${\Xi }^{*}\mathrm{}\left(1530\right)\mathrm{}$ produced in measurable amounts. The data suggest a ${\Xi }^{*}\mathrm{}\left(2225\right)\mathrm{}$ with isotopic spin $\frac{3}{2}$. The mass of the $\phi$ meson is measured to be 1021.5±0.8 MeV from $\Lambda \phi$ events with $\phi \to K_1^{}{}_{}{}^{0}K_2^{}{}_{}{}^0$. This result is 3 MeV higher than that found in other experiments using stopping $K^{+}$ and $K^{-}$ mesons from $\phi \to K^{+}{K}^{-}$. The results of a search for other meson and baryon resonances are presented.