Ionization of He by slow antiproton impact: total and differential ionization cross sections

28th International Conference on Photonic, Electronic and Atomic Collisions

Borbély, S.^1 ; Feist, J.^2,3 ; Nagele, S.^3 ; Nagy, L.^1 ; Tökési, K.^4 ; Burgdörfer, J.^3

Faculty of Physics, Babe-Bolyai University, Cluj-Napoca

400084, Romania^1

Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Madrid, Spain^2

Institute for Theoretical Physics, Vienna University of Technology, Vienna

1040, Austria^3

Institute of Nuclear Research, Hungarian Academy of Sciences, Debrecen

4001, Hungary^4

关键词: Antiproton impact;    Collisional;    Differential cross section;    Double ionization;    Ionization cross section;    Projectile electron;    Single ionization;    Total ionization cross sections;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/7/072008/pdf
DOI  :  10.1088/1742-6596/488/7/072008

来源: IOP

【 摘 要 】

We present accurate theoretical total ionization cross sections for the single and double ionization of He by antiproton impact. We also show differential cross sections for single ionization at 10 and 100 keV antiproton energies. We analyze the angular distribution of the electrons as a function of ejection energies and investigate the dominant features of the differential cross sections. We identify strong post-collisional projectile-electron interaction effects.