Positron scattering from pyridine

Stevens, D., Babij, T.J., Machacek, J.R., Buckman, S.J., Brunger, M.J., White, R.D., Garcia, G., Blanco, F., Ellis-Gibbings, L., and Sullivan, J.P. (2018) Positron scattering from pyridine. Journal of Chemical Physics, 148 (14). 144308.

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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.

Item ID: 53474
Item Type: Article (Research - C1)
ISSN: 1089-7690
Copyright Information: © 2018 Author(s). Published by AIP Publishing.
Funders: Australian Research Council (ARC), Spanish Ministry for Science and Innovation (MINECO), European Union ITN-Marie Curie programme
Projects and Grants: ARC Discovery Grant DP140102854, MINECO FIS2016-80440, European Union ITN-Marie Curie programme No. ARGENT-608163
Date Deposited: 03 May 2018 12:19
FoR Codes: 02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020203 Particle Physics @ 70%
03 CHEMICAL SCIENCES > 0304 Medicinal and Biomolecular Chemistry > 030401 Biologically Active Molecules @ 30%
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