Measurement of the asymmetries in 3 (¯e, e′p)d and 3 (¯e, e′p)np
EUROPEAN PHYSICAL JOURNAL A(2005)
摘要
The electron target asymmetrics A(parallel to) and A(perpendicular to) with target spin parallel and perpendicular to the momentum transfer q were measured for both the two- and three-body breakup of (3)He in the (3)He(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.
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