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Using a relativistic mean-field single particle knock-out model for (e,e')reactions on nuclei, we investigate approximate treatments of Coulombdistortion effects and the extraction of longitudinal and transverse structurefunctions. We show that an effective momentum approximation (EMA) when coupledwith a focusing factor provides a good description of the transversecontributions to the (e,e') cross sections for electron energies above 300 MeVon 208Pb. This approximation is not as good for the longitudinal contributionseven for incident electron eneriges above 1 GeV and if one requires veryprecise extraction of longitudinal and transverse structure functions in thequasielastic region it is necessary to utilize distortion factors based on anuclear model and a more accurate inclusion of Coulomb distortion effects.Comment: 5 pages, 7 figures, submitted to Phys. Rev.

physical review. c. nuclear physics/physical review. c, nuclear physics

Extraction of structure functions from quasielastic electron scattering<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mrow><mml:mo>'</mml:mo></mml:mrow></mml:msup><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math>off medium and heavy nuclei

Extraction of structure functions from quasielastic electron scattering(e,e')off medium and heavy nuclei