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Strong asymmetry of the electron-loss-to-continuum cusp of multielectron U28+ projectiles in near-relativistic collisions with gaseous targets

  • The process of electron-loss to the continuum (ELC) has been studied for the collision systems U28++H2 at a collision energy of 50 MeV/u, U28++N2 at 30 MeV/u, and U28++Xe at 50 MeV/u. The energy distributions of cusp electrons emitted at an angle of 0∘ with respect to the projectile beam were measured using a magnetic forward-angle electron spectrometer. For these collision systems far from equilibrium charge state, a significantly asymmetric cusp shape is observed. The experimental results are compared to calculations based on first-order perturbation theory, which predict an almost symmetric cusp shape. Some possible reasons for this discrepancy are discussed.

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Author:Pierre-Michel HillenbrandORCiDGND, Siegbert HagmannORCiDGND, Juan Manuel MontiORCiD, Roberto Daniel Rivarola, Karl-Heinz BlumenhagenGND, Carsten BrandauORCiD, Weidong Chen, Robert D. DuBoisGND, Alexandre GumberidzeORCiDGND, D. L. Guo, Michael LestinskyORCiDGND, Yuri A. LitvinovORCiDGND, Alfred MüllerGND, Stefan E. SchippersORCiDGND, Uwe SpillmannORCiDGND, Sergiy TrotsenkoGND, Thomas StöhlkerORCiDGND
URN:urn:nbn:de:hebis:30:3-628623
DOI:https://doi.org/10.1103/PhysRevA.93.042709
ISSN:2469-9934
Parent Title (English):Physical review. A
Publisher:Inst.
Place of publication:Woodbury, NY
Document Type:Article
Language:English
Date of Publication (online):2016/04/25
Date of first Publication:2016/04/25
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2022/11/08
Tag:Atoms; Ions; Perturbative methods; Scattering of atoms, molecules, clusters & ions; Scattering theory
Volume:93
Issue:4, art. 042709
Article Number:042709
Page Number:7
First Page:1
Last Page:7
Note:
This work was supported by Helmholtz International Center for FAIR through HGS-HIRe and the Helmholtz-CAS Joint Research Group HCJRG-108. R.D.R. and J.M.M. acknowl- edge support from the Agencia Nacional de Promocio ́n Cient ́ıfica y Tecnolo ́gica of Argentina through Project No. PICT 2011-2145. C.B. acknowledges support by Bundesmin- isterium fu ̈r Bildung und Forschung (Contracts No. 06GI911I, No. 05P12R6FAN, and No. 05P15RGFAA). The authors thank V. P. Shevelko for providing the wave functions for the U28+ orbitals and Z. W. Wu for performing the MCDF calculations for the orbital binding energies of U28+.
HeBIS-PPN:505637189
Institutes:Physik
Forschungscluster / ELEMENTS
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoDeutsches Urheberrecht

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