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Elastic and total cross-sections for electron scattering by acetylene in the intermediate energy range

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Abstract.

We present a joint theoretical-experimental study on electron scattering by C2H2 in the intermediate energy range. We report calculated elastic differential, integral, and momentum-transfer as well as total (elastic + inelastic) and absorption cross-sections at impact energies ranging from 10 to 500 eV. Also, experimental absolute elastic cross-sections are reported in the (50-500)-eV energy range. A complex optical potential is used to represent the electron-molecule interaction dynamics. The iterative Schwinger variational method, combined with the distorted-wave approximation, is used to solve the scattering equations. Experimentally, the angular distributions of the scattered electrons are converted to absolute cross-sections using the relative flow technique. The comparison of our calculated with our measured results, as well as with other experimental and theoretical data available in the literature, is encouraging.

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Authors and Affiliations

  1. Departamento de Química, UFSCar, 13565-905, São Carlos, SP, Brazil

    I. Iga, M.-T. Lee & P. Rawat

  2. Instituto de Física “Gleb Wataghin”, UNICAMP, 13083-970, Campinas, SP, Brazil

    L. M. Brescansin

  3. Departamento de Física, UFSCar, 13565-905, São Carlos, SP, Brazil

    L. E. Machado

Authors
  1. I. Iga
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  2. M.-T. Lee
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  3. P. Rawat
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  4. L. M. Brescansin
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  5. L. E. Machado
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Corresponding author

Correspondence to L. M. Brescansin.

Additional information

Received: 26 August 2004, Published online: 5 October 2004

PACS:

34.80.Bm Elastic scattering of electrons by atoms and molecules

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Iga, I., Lee, MT., Rawat, P. et al. Elastic and total cross-sections for electron scattering by acetylene in the intermediate energy range. Eur. Phys. J. D 31, 45–51 (2004). https://doi.org/10.1140/epjd/e2004-00134-y

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  • DOI: https://doi.org/10.1140/epjd/e2004-00134-y

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