Stranger in the Light: The Strange Vector Form Factors of the Nucleon

Abstract

A model combining vector meson dominance, $\omega -\varphi$ mixing and a kaon cloud contribution is used to estimate the strangeness vector form factors of the nucleon in the momentum range of the planned measurements at MIT-Bates and CEBAF. We compare our results with some other theoretical estimates and discuss the nucleon strangeness radius in models based on dynamically dressed, extended constituent quarks. For a quantitative estimate in the latter framework we use the Nambu-Jona-Lasinio model.

Comments: 36 pages, UMPP \#94--097 (six figures available by e-mail or FAX)