Eur. Phys. J. D 30, 11-14 (2004)
https://doi.org/10.1140/epjd/e2004-00062-x

Double electron capture cross-sections of the ground state in the collisions of He²⁺ and Li³⁺ with He

Ramakrishna Mission Residential College, Narendrapur, Kolkata-103, India

Corresponding author: ^a rkmcnpur@vsnl.com

Received: 25 July 2003
Revised: 5 February 2004
Published online: 4 May 2004

Abstract

We investigate the problem of the double charge transfer cross-section of a helium atom by bare ions of helium and lithium at energies ranging from 60 to 200 keV/amu. The boundary corrected continuum intermediate state approximation (BCCIS) is used to calculate the capture cross-section in the ground state. The continuum state of each electron has been accounted for in the formalism. The present results are compared with existing theoretical and experimental results.