Relativistic coupled-channel calculations of differential ionization cross sections

30th International Conference on Photonic, Electronic, and Atomic Collisions

Bondarev, A.I.^1,2,3 ; Kozhedub, Y.S.^2 ; Tupitsyn, I.I.^2 ; Shabaev, V.M.^2 ; Plunien, G.^4

Center for Advanced Studies, Peter the Great St. Petersburg Polytechnic University, St.-Petersburg

195251, Russia^1

Department of Physics, St. Petersburg State University, St.-Petersburg

199034, Russia^2

NRC Kurchatov Institute - ITEP, Moskow

117218, Russia^3

Institut für Theoretische Physik, Technische Universität Dresden, Dresden

D-01062, Germany^4

关键词: Antiproton impact;    Atomic hydrogen;    Coupled-channel calculations;    Differential cross section;    Ion atom collisions;    Ionization cross section;    Relativistic effects;    Xenon ions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/10/092020/pdf
DOI  :  10.1088/1742-6596/875/10/092020

来源: IOP

【 摘 要 】

Synopsis A relativistic method for calculation of differential cross sections for ionization in ion-atom collisions is developed. It is applied to ionization of atomic hydrogen by antiproton impact, where several discrepancies in available predictions are resolved. The relativistic effects are studied for ionization of hydrogenlike xenon ion under the impact of carbon nuclei.