S X Hu et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 L35 doi:10.1088/0953-4075/38/1/L05
S X Hu, J Colgan and L A Collins
Show affiliationsComplete two-photon break-up of He near threshold has been investigated by solving the time-dependent closing-coupling equations on a numerical lattice. We have obtained good agreement for the total double ionization cross-section with previous theoretical results. The triple-differential cross-sections exhibit interesting features as the two-photon energy approaches the threshold of double ionization. We found that two-electron ejection with equal energy sharing is most probable near the two-photon threshold, in contrast to the case away from threshold, where ejection with large unequal energy sharings is most probable.
Issue 1 (14 January 2005)
Received 20 October 2004
Published 17 December 2004
S X Hu et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 L35
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