p‾p\overline{p}p annihilations into strange particle final states at 700-750 MeV/c

Presents the following preliminary results obtained by the Bombay- CERN-College de France-Madrid collaboration. (1) Measurements of the total and differential cross sections for the reactions pp to K/sub 1 //sup 0/K/sub 1//sup 0/ and pp to K/sub 1//sup 0/K/sub 2//sup 0/ at 700 and 750 MeV/c. The results are discussed in connection with the rho (1970) meson. (2). Measurement of the K*/sup 0/(890)-K*/sup +or- /(890) mass difference in the reactions pp to K/sup +or-/ pi /sup -or+ /K/sub 1//sup 0/. (3) Observation of a K/sub 1//sup 0/K/sub 1//sup 0/ threshold enhancement in the reaction pp to K/sub 1//sup 0/K/sub 1 //sup 0/ pi /sup +/ pi /sup -/ at 700-750 MeV/c. (16 refs)

Properties of P̅p annihilations into strange particles at 702 and 757 MeV/c

P̅p annihilations, leading to the production of at least one neutral K meson in the final state, have been studied in the incident momentum region of 700–760 MeV/c. Topological cross sections and cross sections for the various exclusive final states are presented. Detailed analyses of the different final states have been carried out to study the importance of resonance production and of quasi two-body and quasi three-body processes. A detailed study of the KK̅ πsystem in the four-body final states shows that the F1 meson is a spurious effect due to systematic biases. In the momentum range investigated, the C = +1 final states are strongly suppressed