Measurement of the asymmetries in 3 (¯e, e′p)d and 3 (¯e, e′p)np

The electron target asymmetries A || and A ⊥ with target spin parallel and perpendicular to the momentum transfer were measured for both the two- and three-body breakup of 3 He in the 3 (¯ e , e’p )-reaction. Polarized electrons were scattered off polarized 3 He in the quasielastic regime in parallel kinematics with the scattered electron and the knocked-out proton detected using the Three-Spectrometer Facility at MAMI. The results are compared to Faddeev calculations which take into account Final-State Interactions as well as Meson Exchange Currents. The experiment confirms the prediction of a large effect of Final-State Interactions in the asymmetry of the three-body breakup and of an almost negligible one for the two-body breakup.