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Atoms 2018, 6(2), 27; https://doi.org/10.3390/atoms6020027

Hybrid Theory of Scattering and Its Applications

Heliophysics Science Division, NASA/Goddard Space Flight Center, Greenbelt, MD 20772, USA
Received: 12 April 2018 / Revised: 7 May 2018 / Accepted: 7 May 2018 / Published: 14 May 2018
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Abstract

A number of formulations have been used to investigate scattering of low-energy electrons and positrons from various targets. The hybrid theory of scattering, which takes into account the short-range as well as the long-range correlations, and is variationally correct, is described in this article. This approach has been applied to calculate phase shifts for scattering of electrons and positrons, resonances in two-electron systems, photodetachment, and photoionization of two-electron systems. This approach has also been applied to calculate excitation of 2s state of atomic hydrogen by electron impact. In photoabsorption the target can be left in 2p state instead of 1s state, resulting in the emission of Lyman-alpha radiation. Cross sections for this process are also calculated. View Full-Text
Keywords: hybrid theory of scattering hybrid theory of scattering
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Bhatia, A.K. Hybrid Theory of Scattering and Its Applications. Atoms 2018, 6, 27.

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