Contribution of higher multipole terms of Coulomb interaction to ionization in low-energy heavy-ion collisions

29th International Conference on Photonic, Electronic, and Atomic Collisions

Bondarev, A.I.^1 ; Ivanova, I.V.^1 ; Tupitsyn, I.I.^1 ; Kozhedub, Y.S.^1 ; Plunien, G.^2

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

198504, Russia^1

Institut für Theoretische Physik, Technische Universität Dresden, Dresden

D-01062, Germany^2

关键词: Bare nucleus;    Dirac equations;    Heavy ion collision;    Hydrogenlike ion;    Impact-parameter;    Ionization probabilities;    Relativistic effects;    Spherical coordinates;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/2/022094/pdf
DOI  :  10.1088/1742-6596/635/2/022094

来源: IOP

【 摘 要 】

The two-center Dirac equation is solved in spherical coordinates using the multipole decomposition of the electron-nucleus interaction. The total and differential ionization probabilities in collisions of a hydrogenlike ion with a bare nucleus are calculated for different impact parameters. The contribution of the higher multipole terms of the interaction to these probabilities is analyzed. The influence of relativistic effects is examined as well.