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UDC УДК 541.1.001.5

© S.A.Zaytsev, Knyr V.A., 2010

Double photoionization of atoms in the J-matrix approach

The application of the J-matrix version formulated for the description of the three-body Coulomb system to two-electron single-photon ionization processes is discussed. Triple-differential cross sections of (γ, 2е) reactions have been calculated. Results are rather close to the experiment.

Keywords: helium atom, beryllium atom, photoionization, three-body system, cross section, J-matrix method

References:

1.      Differential cross sections for photo-double-ionization of the helium atom / J. S. Briggs and V. Schmidt // J. Phys. B 2000 Vol. 33.
2.      Frozen-core model of the double photoionization of beryllium / A. S. Kheifets, I. Bray // Phys. Rev. A 2000 Vol. 65.
3.      Application of the J-matrix method to Faddeev-Merkuriev equations for (e,2e) reactions: Beyond pseudostates / S. A. Zaytsev, V. A. Knyr, Yu. V. Popov, A. Lahmam-Bennani // Phys. Rev. A 2007 Vol. 76.
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7.      Application of the CCC method to the calculation of helium double-photoionization triply differential cross sections / A. S. Kheifets, I. Bray // J. Phys. B 1998 Vol. 31.

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