Ab Initio Double-Differential Ionization Cross-Section Calculations in Antiproton–Helium Collisions

Autor: Imre Ferenc Barna, Mihály András Pocsai, Károly Tőkési
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Atoms, Vol 11, Iss 4, p 74 (2023)
Druh dokumentu: article
ISSN: 2218-2004
DOI: 10.3390/atoms11040074
Popis: We present ionization cross-sections for antiproton and helium collisions based on an ab initio time-dependent coupled channel method. In our calculations, a finite basis set of regular helium Coulomb wave packets and Slater function were used. The semiclassical approximation was applied with the time-dependent Coulomb potential to describe the antiproton–electron interaction. Three different projectile energies were considered as 10, 50 and 100 keV. We found clear evidence for the formation of the anti-cusp in the differential distributions.
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