INVESTIGATION OF THE VALIDITY OF THE OZI RULE AND STUDY OF PRODUCTION PROPERTIES OF THE ANTIKAON RESONANCE IN POSITIVE PION-PROTON INTERACTIONS AT 16 GEV/C

Results are reported from a streamer chamber experiment

performed at Stanford Linear Accelerator Center (SLAC) to study

the production of the (PHI)(1020) in OZI-allowed and forbidden

processes in (pi)('+)P interactions at 16 GeV/c. Production properties

of the K*(DEGREES)(896) are also studied and discussed. The data consisted(' )

of 300,000 streamer chamber photographs of (eta)('+)P interactions and information from Cerenkov and scintillation counters recorded on magnetic tapes.

The (PHI)(1020) resonances are observed in the semi-inclusive reactions

(eta)('+) + P (--->) (PHI)(LAMDA)(DEGREES) + (chi)

(eta)('+) + P (--->) (PHI)K(,s)(DEGREES) + (chi)

No clear (PHI)(1020) resonance is seen in the inclusive reaction

(eta)('+) + P (--->) (PHI) + (chi)

It is estimated that at least 35% of (PHI)'s are produced in association with a pair of strange particles. The longitudinal momentum distribution of(' )K*(DEGREES)(896), expressed in terms of Feynman variable Xf, is compared with the predictions of the quark fusion model; it is observed that the model reproduces well the experimentally observed spectrum.