ELECTROPRODUCTION OF PHI-MESON FROM PROTON WITHIN RELATIVISTIC HARMONIC-OSCILLATOR MODEL

We analyze electroproduction of phi-meson from a proton within a uud-s (s) over bar cluster model as a probe of the strangeness content of t he proton. Our consideration is based on the relativistic harmonic osc illator quark model which takes into account the Lorentz-contraction e ffect of the hadron wave functions. We show that the knockout mechanis ms are comparable to the vector-meson-dominance model of diffractive p roduction if only (1-2)% strange quark admixture is assumed. The uud- and s (s) over bar-knockout cross sections have a qualitatively differ ent dependence on the four-momentum transfer squared to the proton and may be distinguished experimentally.