Fully-Stripped Beryllium-Ion Collisions with 2 ℓm States of Atomic Hydrogen: Target Excitation and Ionisation cross Sections.

Autor: Antonio, Nicholas W., Plowman, Corey T., Abdurakhmanov, Ilkhom B., Bray, Igor, Kadyrov, Alisher S.
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Zdroj: Atoms (2218-2004); Dec2022, Vol. 10 Issue 4, p137, 7p
Abstrakt: The wave-packet convergent close-coupling approach is used to calculate integrated target excitation and ionisation cross sections in bare beryllium-ion collisions with the 2 ℓ m states of atomic hydrogen (where n, ℓ and m are the principal, orbital angular momentum and magnetic quantum numbers, respectively). The calculations are performed at representative projectile energies between 10 keV/u to 1 MeV/u. The calculated cross sections for collisions with H( 2 s ) are compared with recent theoretical results. Generally, good agreement is observed for the n-partial excitation and total ionisation cross sections. However, a significant discrepancy is found for excitation into the dominant n = 3 states at 100 keV/u, where the target excitation cross-section peaks. We also present the first calculations of the excitation and ionisation cross sections for Be 4 + collisions with H( 2 p 0 ) and H( 2 p ± 1 ). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index