Published April 28, 1998
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Journal Article
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Elastic electron scattering by laser-excited 138Ba( ... 6s6p 1P1) atoms.
Chicago
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Abstract
The results of a combined experimental and theoretical study of elastic electron scattering by laser-excited 138Ba( ... 6s6p 1P1) atoms are presented. From these studies, we extracted differential scattering cross sections and parameters for elastic scattering both by coherently prepared 1P1 Ba atoms and by Ba atoms in an isotropic, incoherent state of the 1P1 level. This is the first time that results of this type have been reported for elastic scattering by excited atoms. Good agreement was found between the limited experimental results and those obtained from our convergent close-coupling (CCC) theoretical calculations. It was demonstrated that elastic scattering can create alignment with significant probability.
Additional Information
© 1998 IOP Publishing Ltd. Received 6 January 1998, in final form 3 March 1998. The authors acknowledge financial support by NSF, NASA, NRC and DOE. Support of the South Australian Centre for High Performance Computing and Communications is also acknowledged. We wish to express our gratitude to T Fujimoto and S A Kazantsev for calling our attention to the question of alignment creation in elastic scattering and for valuable discussions. We also acknowledge important communications with P W Zetner and D C Cartwright.Files
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