Double photoionization of helium atoms at 1 eV abovethreshold |
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Authors: | J. N. Das S. Paul K. Chakrabarti |
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Affiliation: | 1. Department of Applied Mathematics, University College of Science, 92 A.P.C. Road, Kolkata, 700 009, India 2. Department of Mathematics, Scottish Church College, 1 & 3 Urquhart Square, Kolkata, 700 006, India
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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 D?rner et al. [Phys. Rev. A 57, 1074 (1998)]. |
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