Volume 73, Number 1, January 2006
|Page(s)||21 - 27|
|Section||Atomic and molecular physics|
|Published online||23 November 2005|
Exchange on ionization in -atom scattering
Department of Physics, Indian Institute of Technology Roorkee Roorkee 247667, Uttaranchal, India
Accepted: 31 October 2005
An improvement of the Coulomb-Born approximation is made including the effect of exchange in positronium (Ps) and atom scattering. The exchange amplitude for the simplest Ps-H system is a nine-dimensional integral. We developed a methodology of evaluating the Coulomb-Born-Oppenheimer amplitude for Ps-atom scattering and apply it to calculate the Ps-ionization cross-sections in Ps-H and Ps-He collisions. We present the first and preliminary results using the present methodology.
PACS: 36.10.Dr – Positronium, muonium, muonic atoms and molecules / 34.70.+e – Charge transfer / 82.30.Gg – Positronium chemistry
© EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.