SPIN EFFECTS IN MEDIUM-ENERGY ELECTRON-3HE SCATTERING

Abstract New physics can be accessed by scattering polarized electrons from a polarized 3 He internal gas target. It is discussed how the asymmetries for the reactions 3 He ( e , e′), 3 He ( e , e′p) 3 He ( e , e′n) 3 He ( e , e′d) and 3 He ( e , e′pn) may provide precise information of the S′ and the D-wave parts of the 3 He ground-state wave function, the neutron form factors, and the role of spin-dependent reaction mechanism effects. The experiment uses up to 900 MeV (polarized) electrons from the AmPS storage ring in Amsterdam, Netherlands, in combination with large acceptance electron and hadron detectors.