Since the N∗(1535) resonance was found to have large coupling to the
strangeness due to its possible large ssˉ component, we investigate the
possible contribution of the t-channel N∗(1535) exchange for the ppˉ→ϕϕ reaction. Our calculation indicates that the new mechanism gives
very significant contribution for the energies above 2.25 GeV and may be an
important source for evading the Okubo-Zweig-Iizuka rule in the ϕ
production from NNˉ annihilation.Comment: 6 pages, 3 figure