publication . Other literature type . Article . 2019

Electron- and proton-impact excitation of heliumlike uranium in relativistic collisions

Dariusz Banaś; Zhong Yin; Andrey Surzhykov; Michael Lestinsky; Uwe Spillmann;
Open Access English
  • Published: 01 Mar 2019
  • Publisher: GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
Abstract
We have studied the K-shell excitation of He-like uranium (U90+) in relativistic collisions with hydrogen and argon atoms. Performing measurements with different targets, as well as with different collision energies, enabled us to explore the proton- (nucleus-) impact excitation as well as the electron-impact excitation process for the heaviest He-like ion. The large fine-structure splitting in uranium allowed us to partially resolve excitation into different L-shell levels. State-of-the-art relativistic calculations which include excitation mechanisms due to the interaction with both protons (nucleus) and electrons are in good agreement with the experimental fi...
Subjects
arXiv: Nuclear TheoryNuclear Experiment
free text keywords: 530, Relativistic & quantum electrodynamic effects in atoms, molecules & ions, Atomic spectra, Electronic excitation & ionization, Electronic transitions, [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], ddc:530
72 references, page 1 of 5

A. Gumberidze,1 D. B. Thorn,2 A. Surzhykov,3,4 C. J. Fontes,5 B. Najjari,6 A. Voitkiv,7 S. Fritzsche,8,9 D. Banas´,10

H. F. Beyer,11 W. Chen,12 R. E. Grisenti,11,13 S. Hagmann,11,13 R. Hess,11 P.-M. Hillenbrand,11 P. Indelicato,14

C. Kozhuharov,11 M. Lestinsky,11 R. Märtin,8,11 N. Petridis,11 R. V. Popov,15 R. Schuch,16 U. Spillmann,11 S. Tashenov,17

S. Trotsenko,8,11 A. Warczak,18 G. Weber,8,11 W. Wen,6 D. F. A. Winters,11 N. Winters,11 Z. Yin,19 and Th. Stöhlker8,11,20

1ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany

2Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA

3Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany

4Technische Universität Braunschweig, D-38106 Braunschweig, Germany

5Computational Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

6Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

7Institute for Theoretical Physics I, Heinrich-Heine-University of Düsseldorf, D-40225 Düsseldorf, Germany

8Helmholtz-Institut Jena, D-07743 Jena, Germany

9Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universitt Jena, D-07743 Jena, Germany

10Institute of Physics, Jan Kochanowski University, PL-25-406 Kielce, Poland

11GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany

72 references, page 1 of 5
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