Neutral weak form factors and strangeness in the nucleon

Abstract

Recent studies of strange quark matrix elements of the nucleon suggest that the effect of strange quarks on nucleon structure is not small. These effects can contribute to the electroweak form factors of the nucleon and can be isolated through measurement of vector and axial vector neutral weak form factors. We evaluate several past and future lepton scattering experiments in terms of their sensitivity to the strange contributions to the neutral weak form factors.