(1) Forschungszentrum Rossendorf, PF 510119, 01314 Dresden, Germany, DE;(2) Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna 141980, Russia, RU;(3) Far-Eastern State University, Sukhanova 9, Vladivostok 690090, Russia, RU
Abstract:
We analyze the production of φ mesons in πN and NN reactions in the near-threshold region, using throughout the conventional “non-strange” dynamics based on such processes which are allowed by the non-ideal ω-φ mixing. We show that the occurrence of the direct φNN interaction may show up in different unpolarized and polarization observables in πN→Nφ reactions. We find a strong non-trivial difference between observables in the reactions pp→ppφ and pn→pnφ caused by the different role of the spin singlet and triplet states in the entrance channel. A series of predictions for the experimental study of this effect is presented. Received: 27 January 2000