We have studied the partial wave interference effects to obtain a new information about the contribution of the S-wave to the cross section of the K+K- photoproduction on hydrogen. The K+K- photoproduction channel for the effective masses around 1 GeV is dominated by the \phi (1020) resonance with only a small fraction of events coming from decays of scalar resonances f0(980) and a0(980). However, this S-wave admixture to the dominant P-wave leads to a measurable asymmetry in the angular distribution of outgoing kaons. A fairly precise estimation of the K+K- photoproduction cross section in the S-wave has been obtained.
PACS numbers: 13.60.Le, 25.20.Lj
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