A S Kheifets and I A Ivanov 2006 J. Phys. B: At. Mol. Opt. Phys. 39 1731 doi:10.1088/0953-4075/39/7/015
A S Kheifets and I A Ivanov1
Show affiliationsWe apply the convergent close-coupling (CCC) formalism to the problem of two-photon double ionization of helium. The electron–photon interaction is treated perturbatively whereas the electron–electron interaction is included in full. The integrated two-photon double ionization cross-section is substantially below non-perturbative literature results. However, the pattern of the angular correlation in the two-electron continuum is remarkably close to the non-perturbative time-dependent close-coupling calculation of Hu et al (2005 J. Phys. B: At. Mol. Opt. Phys. 38 L35).
32.80.Rm Multiphoton ionization and excitation to highly excited states
34.50.-s Scattering of atoms and molecules
Issue 7 (14 April 2006)
Received 3 November 2005, in final form 16 January 2006
Published 20 March 2006
A S Kheifets and I A Ivanov 2006 J. Phys. B: At. Mol. Opt. Phys. 39 1731
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