Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np

Details Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np

2005-05-11

arxiv.org/abs/nucl-ex/0505012v2

Eur.Phys.J. A25 (2005) 177-183

Physics

Nuclear Physics

Nuclear Experiment

accepted by Eur. Phys. Journal A

Scientific paper

The electron-target-asymmetries A_parallel and A_perpendicular with target spin parallel and perpendicular to the momentum transfer q were measured for both the two-- and three-body breakup of 3He in the 3He(e,e'p)-reaction. Polarized electrons were scattered off polarized 3He 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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