Validity of the Impulse Approximation and Quasielastic (e,e'p) Reactions from Nuclei

Details Validity of the Impulse Approximation and Quasielastic (e,e'p) Reactions from Nuclei Validity of the Impulse Approximation and Quasielastic (e,e'p) Reactions from Nuclei

2000-12-20

arxiv.org/abs/nucl-th/0012071v1

Physics

Nuclear Physics

Nuclear Theory

5 pages, 4 figures

Scientific paper

We assess the combined effect of ground-state correlations, meson-exchange and isobar currents upon the cross sections for quasielastic (e,e'p) reactions from nuclei. Four-momenta in the range 0.1 \leq Q^2 \leq 1 GeV^2 are addressed. We observe that for $Q^2$ values exceeding 0.2 GeV^2, quasielastic conditions and missing momenta below the Fermi momentum, the ground-state correlations and two-body currents do not dramatically alter the $(e,e'p)$ predictions as they are obtained in the impulse approximation. Moreover, deviations from the impulse approximation exhibit a rather modest Q^2 dependence.

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