Experimental and theoretical total cross sections for single and double ionization of the open-4d-shell ions Xe, Xe, and Xe by electron impact

Fengtao Jin; Alexander Borovik; B. Michel Döhring; Benjamin Ebinger; Alfred Müller; Stefan Schippers

doi:10.1140/epjd/s10053-024-00854-2

2024 Impact factor 1.5

Atomic, Molecular, Optical and Plasma Physics

Atomic Spectra and Oscillator Strengths (ASOS14)

Open Access

Eur. Phys. J. D (2024) 78: 68
https://doi.org/10.1140/epjd/s10053-024-00854-2

Regular Article

Experimental and theoretical total cross sections for single and double ionization of the open-4d-shell ions Xe $^{12 +}$ $^{12+}$ , Xe $^{13 +}$ $^{13+}$ , and Xe $^{14 +}$ $^{14+}$ by electron impact

Fengtao Jin¹^,2^a, Alexander Borovik Jr.¹, B. Michel Döhring¹^,3, Benjamin Ebinger¹, Alfred Müller¹ and Stefan Schippers¹^,3^f

¹ I. Physikalisches Institut, Justus-Liebig Universität Gießen, 35392, Giessen, Germany
² Department of Physics, National University of Defense Technology, 410073, Changsha, China
³ Helmholtz Forschungsakademie Hessen für FAIR (HFHF), GSI Gesellschaft für Schwerionenforschung, Campus Gießen, 35392, Giessen, Germany

^a ftjin@nudt.edu.cn
^f schippers@jlug.de

Received: 7 March 2024
Accepted: 19 April 2024
Published online: 3 June 2024

Abstract

We present new experimental and theoretical cross sections for electron-impact single ionization of Xe $^{12 +}$ $^{12+}$ and Xe $^{13 +}$ $^{13+}$ ions, and double ionization of Xe $^{12 +}$ $^{12+}$ , Xe $^{13 +}$ $^{13+}$ and Xe $^{14 +}$ $^{14+}$ ions for collision energies from the respective ionization thresholds up to 3500 eV. The calculations use the fully relativistic subconfiguration-averaged distorted-wave approach and, partly, the more detailed level-to-level distorted wave method. We find that, unlike in previous work, our theoretical cross sections agree with our experimental ones within the experimental uncertainties, except for the near-threshold double-ionization cross sections. We attribute this remaining discrepancy to the neglect of direct-double ionization in the present theoretical treatment.

© The Author(s) 2024

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