Positron scattering from pyridine

Journal Publication ResearchOnline@JCU
Stevens, D.;Babij, T.J.;Machacek, J.R.;Buckman, S.J.;Brunger, M.J.;White, R.D.;Garcia, G.;Blanco, F.;Ellis-Gibbings, L.;Sullivan, J.P.
Ron White
Abstract

We present a range of cross section measurements for the low-energy scattering of positrons from pyridine, for incident positron energies of less than 20 eV, as well as the independent atom model with the screening corrected additivity rule including interference effects calculation, of positron scattering from pyridine, with dipole rotational excitations accounted for using the Born approximation. Comparisons are made between the experimental measurements and theoretical calculations. For the positronium formation cross section, we also compare with results from a recent empirical model. In general, quite good agreement is seen between the calculations and measurements although some discrepancies remain which may require further investigation. It is hoped that the present study will stimulate development of ab initio level theoretical methods to be applied to this important scattering system.

Journal

Journal of Chemical Physics

Publication Name

Journal of Chemical Physics

Volume

148

ISBN/ISSN

1089-7690

Edition

N/A

Issue

14

Pages Count

7

Location

N/A

Publisher

American Institute of Physics

Publisher Url

N/A

Publisher Location

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Publish Date

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Url

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Date

N/A

EISSN

N/A

DOI

10.1063/1.5024246