Measurement of the asymmetries in He-3-polarized (e-polarized, e-prime p) d and He-3-polarized (e-polarized, e-prime p) np - INSPIRE

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Measurement of the asymmetries in He-3-polarized (e-polarized, e-prime p) d and He-3-polarized (e-polarized, e-prime p) np

A1

Collaboration

•

P. Achenbach

May, 2005

7 pages

Published in:

Eur.Phys.J.A 25 (2005) 177-183

e-Print:

nucl-ex/0505012 [nucl-ex]

DOI:

10.1140/epja/i2005-10115-2

Experiments:

MAINZ-A1

View in:

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Abstract: (arXiv)

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.

Note:

accepted by Eur. Phys. Journal A

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Figures(0)

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