Antiproton impact ionization of hydrogen atom: Differential cross sections computed by Coulomb wave function discrete variable representation method

Authors

  • Zorigt Gombosuren Department of Physics, School of Applied Sciences, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
  • Aldarmaa Chuluunbaatar Department of Physics, School of Applied Sciences, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
  • Khenmedekh Lochin Department of Physics, School of Applied Sciences, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
  • Lkhagva Oidov Department of Physics, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia
  • Khatanbold Erdenebayar Department of Physics, School of Applied Sciences, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia

DOI:

https://doi.org/10.5564/jasea.v3i1.2477

Keywords:

Collisions of charged particles with atoms, Ionization, doubly differential cross sections, singly differential cross sections

Abstract

Our aim is using the Coulomb wave function discrete variable representation method (CWDVR) for the calculation of collision problem in first time. Nonrelativistic collision of antiproton with hydrogen atom is described by solving the time-dependent Schrodinger equation numerically. Two collision amplitudes are used for calculation of the differential cross sections, one of them corresponds to impact parameter of the projectile while other one is determined by projectile momentum transfer and found by Fourier transform of the first one. The ionization amplitude calculated by projecting of the wave function onto continuum wave function of the ejected electron. The differential cross sections calculated depending on projectile impact energy, scattering angle and electron ejection energy and angles, which is a result that can be measured experimentally. Our results are in good agreement with the relativistic calculation results.

Abstract
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References

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Published

2022-12-31

How to Cite

[1]
Z. Gombosuren, A. Chuluunbaatar, K. Lochin, L. Oidov, and K. Erdenebayar, “Antiproton impact ionization of hydrogen atom: Differential cross sections computed by Coulomb wave function discrete variable representation method”, J. appl. sci. eng., A, vol. 3, no. 1, pp. 59–70, Dec. 2022.

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