I Rabadán et al 1996 J. Phys. B: At. Mol. Opt. Phys. 29 L801 doi:10.1088/0953-4075/29/22/004
Possible role of double scattering in electron - atom scattering in a laser field
I Rabadán
, L Méndez
and A S Dickinson§
LETTER TO THE EDITOR
By considering observations of double-scattering effects in the excitation of the 
level of He, gas density values are estimated for the laser-assisted elastic scattering experiments of Wallbank and Holmes (1993, 1994a, b) for which the Kroll - Watson approximation appears to fail. Using comparable densities for He and lower densities for Ar, and assuming the Kroll - Watson approximation for single-scattering events, differential cross sections are calculated including double scattering for laser-assisted scattering for a range of energies and scattering angles. Comparison with the observed values shows that double-scattering effects can give a semi-quantitative explanation of the apparent breakdown of the Kroll - Watson approximation in both He and Ar.
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Issue 22 (28 November 1996)
Received 16 September 1996
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Possible role of double scattering in electron - atom scattering in a laser field
I Rabadán et al 1996 J. Phys. B: At. Mol. Opt. Phys. 29 L801
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