Angular dependence of double electron capture in collisions of C4+ with He

Stueckelberg oscillations in the differential cross-section for capture into C2+(1s22s21S)
  • L. PichlEmail author
  • R. Suzuki
  • M. Kimura
  • Y. Li
  • R. J. Buenker
  • M. Hoshino
  • Y. Yamazaki
Dynamics and Stereodynamics of Bimolecular Collisions


In charge-transfer collisions of C4+(1s2 1S) with He (1s2 1S), the process of double electron capture into the ground state C2+ is well-known to dominate other channels by an order of magnitude for projectile energies below 10 keV. This work presents a calculation of differential cross-sections resolved in the angle and energy gain variables, based on an ab initio treatment of electronic states, and compares with the measurements published in the literature (projectile energy E=270, 400, and 470 eV). We also briefly discuss the semi-empirical two-state models developed by experimentalists for this process.


34.70.+e Charge transfer 31.15.Ar Ab initio calculations 


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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  • L. Pichl
    • 1
    Email author
  • R. Suzuki
    • 2
  • M. Kimura
    • 3
  • Y. Li
    • 4
  • R. J. Buenker
    • 4
  • M. Hoshino
    • 5
  • Y. Yamazaki
    • 6
  1. 1.Max Planck Institute for the Physics of Complex SystemsDresdenGermany
  2. 2.Computer Center, Hitotsubashi UniversityTokyoJapan
  3. 3.Graduate School of Sciences, Kyushu UniversityFukuokaJapan
  4. 4.Fachbereich C-Mathematik und Naturwissenschaften, Bergische Universität WuppertalWuppertalGermany
  5. 5.Department of PhysicsSophia UniversityTokyoJapan
  6. 6.RIKEN, 2-1 HirosawaWakoJapan

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