Probing nucleon strangeness using vector meson dominance

✍ Scribed by Stephen R. Cotanch; Robert A. Williams

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 196 KB
• Volume: 631
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(98)00051-7

✦ Synopsis

Calculations for N(lr, e+e-)N reactions are reported to motivate measurements of the nucleon time-like form factors in the ~b meson mass region. Using vector meson dominance and a field theoretical model which describes pion photoproduction data, crossing predictions for N(Tr, e + e-)N are detailed exhibiting dramatic, several order of magnitude enhancements from ~bN 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(7, ~b)p data is also presented using a similar dynamic model and ~bN coupling.