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Convergent close coupling versus the generalized Sturmian function approach: Wave-function analysis

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Ambrosio, M.
Mitnik, D.
Gasaneo, G.
Randazzo, J.
Kadyrov, Alisher
Fursa, Dmitry
Bray, I.
Date
2015
Type
Journal Article

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Ambrosio, M. and Mitnik, D. and Gasaneo, G. and Randazzo, J. and Kadyrov, A. and Fursa, D. and Bray, I. 2015. Convergent close coupling versus the generalized Sturmian function approach: Wave-function analysis. Physical Review A - Atomic, Molecular, and Optical Physics. 92 (5).
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Physical Review A - Atomic, Molecular, and Optical Physics
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Department of Physics and Astronomy
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Abstract

© 2015 American Physical Society. We compare the physical information contained in the Temkin-Poet (TP) scattering wave function representing electron-impact ionization of hydrogen, calculated by the convergent close-coupling (CCC) and generalized Sturmian function (GSF) methodologies. The idea is to show that the ionization cross section can be extracted from the wave functions themselves. Using two different procedures based on hyperspherical Sturmian functions we show that the transition amplitudes contained in both GSF and CCC scattering functions lead to similar single-differential cross sections. The single-continuum channels were also a subject of the present studies, and we show that the elastic and excitation amplitudes are essentially the same as well.