Electromagnetic Probe of Nucleon Strangeness
We continue our strangeness studies with new calculations for the nucleon time-like form factors and probing lepton pair production process N(π,e+e−)N. Using a recent value for the φN coupling constant obtained from our analysis of limited p(γ, φ))p data, we again document a several order of magnitude e + e − production resonant cross section structure. This dramatic φ peak follows from vector meson dominance and provides an interesting experimental signature for OZI violation and the strangeness content of the nucleon.
KeywordsForm Factor Magnetic Form Factor Vector Meson Dominance Compton Virtual Scattering Pomeron Exchange
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- 7.Ulf-G. Meißner et al.: Report No. JLAB-THY-97-02; hep-ph/9701296Google Scholar