• Title of article

    Probing proton strangeness with time-like virtual Compton scattering

  • Author/Authors

    Stephen R. Cotanch ، نويسنده , , Robert A. Williams، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2002
  • Pages
    8
  • From page
    85
  • To page
    92
  • Abstract
    We document that p(γ,e+e−)p measurements will yield new, important information about the off-shell time-like nucleon form factors, especially in the φ meson region (q2=M2φ) governing the φN couplings gV,TφNN. Calculations for p(γ,e+e−)p, utilizing vector meson dominance, predict measurable φ enhancements at high |t| compared to the expected φ background production from π, η and Pomeron exchange. The φ form factor contribution generates a novel experimental signature for OZI violation and the proton strangeness content. The φN couplings are determined independently from a combined analysis of the neutron electric form factor and recent high |t| φ photoproduction. The π, η and Pomeron transition form factors are also predicted and the observed π and η transition moments are reproduced.
  • Keywords
    ?N coupling , Compton scattering , ? photoproduction , Vector meson dominance , Nucleon Form Factors , Nucleon strangeness
  • Journal title
    PHYSICS LETTERS B
  • Serial Year
    2002
  • Journal title
    PHYSICS LETTERS B
  • Record number

    916378