We analyze the production of φ mesons in πN and N N reactions in the nearthreshold 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 φN N interaction may show up in different unpolarized and polarization observables in πN → N φ 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.

No abstract

We estimate the contribution of f 2 trajectory exchange to the central η and η ′ production. It is shown that secondary Reggeons may give a large contribution to processes of double diffractive meson production at high energies.PACS number(s): 12.40.Nn, 13.60. Le, 12.39.Mk

No abstract

No abstract