Form factors and other measures of strangeness in the nucleon
arXiv:0711.4304 · doi:10.1103/PhysRevD.77.033006
Abstract
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)-sbar(x) between the longitudinal momentum distributions of strange quarks and antiquarks with the form factor F1^s(t), which describes the distribution of strangeness in transverse position space.
(22 pages, 19 figures, minor corrections, matches journal version)