Cross sections for electron impact excitation of the vibrationally resolved AΠ1 electronic state of carbon monoxide

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  • H. Kato
    Sophia University Physics Department, , Chiyoda-ku, Tokyo 102-8554, Japan
  • H. Kawahara
    Sophia University Physics Department, , Chiyoda-ku, Tokyo 102-8554, Japan
  • M. Hoshino
    Sophia University Physics Department, , Chiyoda-ku, Tokyo 102-8554, Japan
  • H. Tanaka
    Sophia University Physics Department, , Chiyoda-ku, Tokyo 102-8554, Japan
  • M. J. Brunger
    Flinders University ARC Centre for Antimatter-Matter Studies, SoCPES, , G.P.O. Box 2100, Adelaide SA 5001, Australia
  • Y.-K. Kim
    National Institute of Standards and Technology , Gaithersburg, Maryland 20899-8422

書誌事項

公開日
2007-02-09
DOI
  • 10.1063/1.2434169
公開者
AIP Publishing

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<jats:p>The authors report new differential cross section measurements for electron impact excitation of the AΠ1(v′) states of carbon monoxide. The energy range is 20–200eV. They also reanalyze the AΠ1(v′) manifold cross sections of Middleton et al. [J. Phys. B 26, 1743 (1993)] in order to provide a basis for comparison with our new vibrationally resolved differential cross sections. Excellent agreement is found between the two sets of measurements at all common energies. From 20to200eV the present differential cross sections are extrapolated and integrated, and the corresponding integral excitation cross sections determined. New scaled Born integral cross sections, calculated as a part of the present study, are compared against these experimental integral cross sections, with excellent agreement being found for all the AΠ1(v′=0–7)←XΣg+1(v″=0) transitions. In addition our scaled Born integral cross sections are found to be in excellent agreement between 300 and 1500eV with those derived from the previous experiments of Lassettre and Skerbele [J. Chem. Phys. 54, 1597 (1971)] and of Zhong et al. [Phys. Rev. A 55, 1799 (1997)] and from near threshold to 15eV with those derived from Zobel et al. [J. Phys. B 29, 813 (1996)] and Zetner et al. (J. Phys. B 31, 2395 (1998)].</jats:p>

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