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Nuclear Physics A 806 (2008) 191215 www.elsevier.com/locate/nuclphysa
 

Summary: Nuclear Physics A 806 (2008) 191­215
www.elsevier.com/locate/nuclphysa
Coulomb distortion effects in quasi-elastic (e,e )
scattering on heavy nuclei
Andreas Aste
Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
Received 13 November 2007; received in revised form 18 March 2008; accepted 19 March 2008
Available online 22 March 2008
Abstract
The influence of the Coulomb distortion for quasi-elastic (e,e ) scattering on highly charged nuclei is in-
vestigated in distorted wave Born approximation for electrons. The Dirac equation is solved numerically in
order to obtain exact electron continuum states in the electrostatic field generated by the charge distribution
of an atomic nucleus. Different approximate models are used to describe the nucleon current in order to
show that, at high electron energies and energy­momentum transfer, the influence of Coulomb distortions
on (e,e ) cross sections can be reliably described by the effective momentum approximation, irrespective
of details concerning the description of the nuclear current.
© 2008 Elsevier B.V. All rights reserved.
PACS: 25.30.Fj; 25.70.Bc; 11.80.Fv
Keywords: Quasi-elastic electron scattering; Effective momentum approximation; Nucleon form factors; Coulomb
corrections

  

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

 

Collections: Physics