Elastic scattering of electrons by benzene |
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Authors: | J S Mahant Shetty S M Bharathi G Basavaraju |
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Institution: | (1) Department of Physics, Indian Institute of Technology, 400 076 Bombay, India;(2) 1405, Scottsboro Lane, 75082 Richardson, Texas, USA |
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Abstract: | Relative differential cross-sections for the elastic scattering of electrons from benzene have been measured at incident energies
300, 500, 700 and 900eV and for scattering angles between 30° and 120°. The results are discussed and compared with the independent
atom model (IAM) calculations. Two different sets of scattering amplitudes for the constituent atoms of benzene were used
in these calculations, one obtained from first Born approximation and the other from partial wave analysis of the Dirac equation.
Only the static interaction was taken into account in the calculations. The higher the incident energy, the better is the
observed agreement between experiment and theory. This indicates that at higher energies, absorption, exchange and polarization
effects are not significant as compared to the static interaction and that the IAM satisfactorily predicts the interference
of scattering from the individual atoms of C6H6. |
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Keywords: | Elastic scattering of electrons C6H6 energy region 300– 900eV differential cross sections |
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