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Projectile focusing near the recoil-ion threshold
Authors
R.O. Barrachina
P.A. Macri
V.D. Rodríguez
Publication date
1 January 2007
Publisher
Abstract
The post-collisional interactions in ion-atom ionization collisions are studied around the electron capture to the continuum (ECC) process. For this purpose, a suitable double differential cross section is introduced, involving the longitudinal recoil-ion momentum and the projectile transverse momentum transfer. Using the fact that the ECC process is closely related to the threshold in the longitudinal momentum distribution, we study this distribution as a function of the projectile scattering angle. Using the CDW-EIS approximation we theoretically find a focusing (defocusing) effect as we get closer to the distribution threshold for proton (antiproton) impact on He atoms. © 2007 IOP Publishing Ltd
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Rectorado de la Universidad de Buenos Aires
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oai:RDI UBA:artiaex:paper_1742...
Last time updated on 15/05/2024
Biblioteca Digital Biblioteca Digital de la Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires (Biblioteca Digital FCEN-UBA)
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Last time updated on 04/07/2017