Articles written in Pramana – Journal of Physics
Volume 58 Issue 1 January 2002 pp 39-57 Research Articles
The angular distribution of the five-fold differential cross section for the electron impact double ionization of He (21
Volume 58 Issue 4 April 2002 pp 647-656 Research Articles
The angular variations of the five-fold differential cross section obtained by using different wave functions of helium are compared with experimental data. It is found that in the coplanar geometry two kinematical arrangements, (i) equal energy sharing between the two ejected electrons with one of them ejected along the momentum transfer direction and the other along varying direction and (ii) the Bethe ridge condition with fixed sum of ejected electron energies and varying angle between them, are very sensitive to e-e correlations contained in the target wave function. This comparison has been used to show that open-shell class of wave functions better incorporate e-e correlations than the closed-shell class.
Volume 95, 2021
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