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Double photoionization of helium atoms at 1 eV above threshold

  • Atomic and Molecular Collisions
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Abstract.

An ab initio calculation of triple differential cross-section for double photoionization of helium atoms are presented for a very low energy of just 1 eV above threshold in the equal energy sharing kinematics. We have used hyperspherical partial wave theory together with a Numerov difference scheme in place of other schemes used in our earlier works. The results are in excellent qualitative agreement with the measurements of Dörner et al. [Phys. Rev. A 57, 1074 (1998)].

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Authors and Affiliations

  1. Department of Applied Mathematics, University College of Science, 92 A.P.C. Road, Kolkata, 700 009, India

    J. N. Das & S. Paul

  2. Department of Mathematics, Scottish Church College, 1 & 3 Urquhart Square, Kolkata, 700 006, India

    K. Chakrabarti

Authors
  1. J. N. Das
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  2. S. Paul
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  3. K. Chakrabarti
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Correspondence to K. Chakrabarti.

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Das, J., Paul, S. & Chakrabarti, K. Double photoionization of helium atoms at 1 eV above threshold. Eur. Phys. J. D 39, 223–225 (2006). https://doi.org/10.1140/epjd/e2006-00100-9

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  • DOI: https://doi.org/10.1140/epjd/e2006-00100-9

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