Probing nucleon strangeness using vector meson dominance

Abstract Calculations for N ( π , e + e − ) N reactions are reported to motivate measurements of the nucleon time-like form factors in the φ meson mass region. Using vector meson dominance and a field theoretical model which describes pion photoproduction data, crossing predictions for N ( π , e + e − ) N are detailed exhibiting dramatic, several order of magnitude enhancements from φN coupling in the nucleon form factors. These narrow, dual peaked resonances provide a novel experimental signature for OZI violation and the related strangeness content of the nucleon. A low energy analysis of the limited p ( γ , φ ) p data is also presented using a similar dynamic model and φN coupling.