The calculation of photoionization cross-section of negative hydrogen ions in the Born approximation

: pp. 125–139
Received: March 16, 2020
Revised: March 21, 2020
Accepted: April 16, 2020

Mathematical Modeling and Computing, Vol. 7, No. 1, pp. 125–139 (2020)

Ivan Franko National University of Lviv
Ivan Franko National University of Lviv
Ivan Franko National University of Lviv
Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine

It is shown that the two-electron wave function of the system "hydrogen atom + photoelectron" in the Born approximation provides high accuracy of the photoionization process cross-section calculation of negative hydrogen ion.  The partial cross-sections, which correspond to different ``reaction ns-channels'' in the scale of photoelectron energy and the scale of wavelengths are calculated.  The comparisons with the results of other authors which obtained by other methods are performed.

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