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Differential cross sections for single ionization of Li in collisions with fast protons and O8+ ions

Gulyás, László and Egri, Sándor and Kirchner, T. (2014) Differential cross sections for single ionization of Li in collisions with fast protons and O8+ ions. PHYSICAL REVIEW A, 90 (6). ISSN 2469-9926

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Abstract

We study the process of single ionization of Li in collisions with H+ and O8+ projectile ions at 6 MeV and 1.5-MeV/amu impact energies, respectively. Using the frameworks of the independent- electron model and the impact parameter picture, fully (FDCS) and doubly (DDCS) differential cross sections are evaluated in the continuum distorted-wave with eikonal initial-state approxima- tion. Comparisons are made with the recent measurements of LaForge et al [J. Phys. B 46 031001 (2013)] for the DDCS and Hubele et al [Phys. Rev. Lett. 110 133201 (2013)] for the FDCS, respectively. For O8+ impact inclusion of the heavy particle (NN) interaction in the calculations is crucial and effects of polarization due to the presence of the projectile ion have also to be taken into account for getting very good agreement with the measured data. Our calculation reproduces the satellite peak structure seen in the FDCS for the Li(2s) measurement, which we explain as being formed by a combination of the binary and NN interactions .

Item Type: Article
Uncontrolled Keywords: LITHIUM; IONS; SINGLE IONIZATION; Impact ionization; Projectiles; Differential cross section; Impact-parameter; Continuum distorted waves; Projectile ions; Distortion (waves); Measurements of; Satellite peaks; Electron models;
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 25 Mar 2024 14:49
Last Modified: 25 Mar 2024 14:49
URI: https://real.mtak.hu/id/eprint/190953

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