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Phys. Rev. A 63, 020701(R) (2001) [4 pages]

Half-collision model for triple photoionization of lithium

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Thomas Pattard1,* and Joachim Burgdörfer1,2
1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200
2Institute for Theoretical Physics, Vienna University of Technology, A1040 Vienna, Austria

Received 31 August 2000; published 5 January 2001

We present a simple half-collision model that allows the approximate calculation of absolute cross sections for triple ionization as well as cross-section ratios σ3+/σ2+ of lithium by photon impact. The model decomposes the three-electron breakup process into a double ionization of the two inner electrons followed by electron-electron half-scattering of the receding electrons at the residual “spectator” 2s electron. We find surprisingly good agreement with recent experimental data.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.020701
DOI:
10.1103/PhysRevA.63.020701
PACS:
32.80.Fb, 34.50.Fa, 34.90.+q

*Present address: MPI for the Physics of Complex Systems, Nöthnitzer Straße 38, D-01187 Dresden, Germany.

 
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