Table of Contents
Journal of Atomic, Molecular, and Optical Physics
Volume 2010, Article ID 128473, 7 pages
http://dx.doi.org/10.1155/2010/128473
Research Article

A Complete Postversion of the Three-Body Continuum Distorted Wave-Eikonal Initial State Approximation for Single Ionization of Multielectron Atoms

1Instituto de Física Rosario (CONICET-UNR) and Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Universidad Nacional de Rosario, Avenida Pellegrini 250, 2000 Rosario, Argentina
2Institut de Physique, Laboratoire de Physique Moléculaire et des Collisions, Université Paul Verlaine-Metz, 1 Bv. Arago, 57078 Metz Cedex 3, France

Received 14 December 2009; Accepted 25 February 2010

Academic Editor: Boris A. Malomed

Copyright © 2010 J. M. Monti et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Single electron ionization of helium targets produced by the impact of fast proton beams is investigated. The postversion of the continuum distorted wave-eikonal initial state into a three-body approximation is reformulated, including the dynamic screening produced by the nonionized electron. This dynamic screening is shown to play a main role in the determination of double differential cross-sections. A good agreement is found with predictions obtained employing the prior version of the model, so that post-prior discrepancies are almost eliminated.