Radiative-electron-capture-to-continuum cusp in U88+ + N2 collisions and the high-energy endpoint of electron-nucleus bremsstrahlung

The radiative electron capture of a target electron into the projectile continuum has been studied for the collision system U88N2→U88[N+2]∗+e−+γ at 90 MeV/u. Using a magnetic electron spectrometer, the energy distribution of cusp electrons emitted under an angle of 0∘ with respect to the projectile...

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Main Authors: Hillenbrand, Pierre-Michel (Author) , Hagmann, S. (Author) , Atanasov, D. (Author) , Banaś, D. (Author) , Blumenhagen, K.-H. (Author) , Brandau, C. (Author) , Chen, W. (Author) , De Filippo, E. (Author) , Gumberidze, A. (Author) , Guo, D. L. (Author) , Jakubassa-Amundsen, D. H. (Author) , Kovtun, Oleksiy (Author) , Kozhuharov, C. (Author) , Lestinsky, M. (Author) , Litvinov, Yuri A. (Author) , Müller, A. (Author) , Müller, R. A. (Author) , Rothard, H. (Author) , Schippers, S. (Author) , Schöffler, M. S. (Author) , Spillmann, U. (Author) , Surzhykov, A. (Author) , Trotsenko, S. (Author) , Winckler, N. (Author) , Yan, X. L. (Author) , Yerokhin, V. A. (Author) , Zhu, X. L. (Author) , Stöhlker, Th. (Author)
Format: Article (Journal)
Language:English
Published: 11 August 2014
In: Physical review. A, Atomic, molecular, and optical physics
Year: 2014, Volume: 90, Issue: 2
ISSN:1094-1622
DOI:10.1103/PhysRevA.90.022707
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.90.022707
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.90.022707
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Author Notes:P.-M. Hillenbrand, S. Hagmann, D. Atanasov, D. Banaś, K.-H. Blumenhagen, C. Brandau, W. Chen, E. De Filippo, A. Gumberidze, D.L. Guo, D.H. Jakubassa-Amundsen, O. Kovtun, C. Kozhuharov, M. Lestinsky, Yu.A. Litvinov, A. Müller, R.A. Müller, H. Rothard, S. Schippers, M.S. Schöffler, U. Spillmann, A. Surzhykov, S. Trotsenko, N. Winckler, X.L. Yan, V.A. Yerokhin, X.L. Zhu, and Th. Stöhlker
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Summary:The radiative electron capture of a target electron into the projectile continuum has been studied for the collision system U88N2→U88[N+2]∗+e−+γ at 90 MeV/u. Using a magnetic electron spectrometer, the energy distribution of cusp electrons emitted under an angle of 0∘ with respect to the projectile beam and with a velocity close to the projectile velocity has been measured in coincidence with the emitted photons under various observation angles. The experimental results provide a stringent test for the corresponding process in inverse kinematics, namely, the theory of electron-nucleus bremsstrahlung at the high-energy endpoint. For comparison this process is calculated using fully relativistic Dirac wave functions and using semirelativistic Sommerfeld-Maue wave functions.
Item Description:Im Titel ist "88+" hochgestellt und die Ziffer "2" tiefgestellt
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Physical Description:Online Resource
ISSN:1094-1622
DOI:10.1103/PhysRevA.90.022707