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Europhys. Lett., 67 (5), pp. 753759 (2004) DOI: 10.1209/epl/i2004-10113-x

Summary: Europhys. Lett., 67 (5), pp. 753­759 (2004)
DOI: 10.1209/epl/i2004-10113-x
Improved effective momentum approximation for
quasielastic (e, e ) scattering off highly charged nuclei
A. Aste and J. Jourdan
Institute for Physics, University of Basel - 4056 Basel, Switzerland
(received 30 April 2004; accepted in final form 14 June 2004)
PACS. 25.70.Bc ­ Elastic and quasielastic scattering.
PACS. 25.30.Fj ­ Inelastic electron scattering to continuum.
PACS. 11.80.Fv ­ Approximations (eikonal approximation, variational principles, etc.).
Abstract. ­ We address the problem of including Coulomb distortion effects in inclusive
quasielastic (e, e ) reactions using an improved version of the effective momentum approxima-
tion. Arguments are given that a simple modification of the effective momentum approximation,
which is no longer applicable in its original form in the case of highly charged nuclei, leads to
very good results. A comparison of the improved effective momentum method with exact cal-
culations is given. A critical remark concerns recent experiments with inclusive quasielastic
positron scattering.
Nucleon knockout by quasielastic electron scattering provides a powerful possibility to ex-
plore the electromagnetic properties of nucleons and of the momentum distributions in nuclei,


Source: Aste, Andreas - Institut für Physik, Universität Basel


Collections: Physics