January 2008, to be published in Physical Review D1


Form factors and other measures of strangeness in the nucleon
Markus Diehl, Thorsten Feldmann, and Peter Kroll

We discuss the phenomenology of strange-quark dynamics in the nucleon, based on experimental and theoretical results for electroweak form factors and for parton densities. In particular, we construct a model for the generalized parton distribution that relates the asymmetry $s(x)-\bar s(x)$ between the longitudinal momentum distributions of strange quarks and antiquarks with the form factor $F_1^s(t)$, which describes the distribution of strangeness in transverse position space.

© 2008 The American Physical Society.