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Integral elastic, electronic-state, ionization, and total cross sections for electron scattering with furfural

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Jones, D. B. and da Costa, R.F. and Varella, M. T. do N. and Bettega, M. H. F. and Lima, M. A. P. and Blanco Ramos, Francisco and García, G. and Brunger, M. J. (2016) Integral elastic, electronic-state, ionization, and total cross sections for electron scattering with furfural. Journal of chemical physics, 144 (14). ISSN 0021-9606

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Official URL: http://dx.doi.org/10.1063/1.4944616


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Abstract

We report absolute experimental integral cross sections (ICSs) for electron impact excitation of bands of electronic-states in furfural, for incident electron energies in the range 20-250 eV. Wherever possible, those results are compared to corresponding excitation cross sections in the structurally similar species furan, as previously reported by da Costa et al. [Phys. Rev. A 85, 062706 (2012)] and Regeta and Allan [Phys. Rev. A 91, 012707 (2015)]. Generally, very good agreement is found. In addition, ICSs calculated with our independent atom model (IAM) with screening corrected additivity rule (SCAR) formalism, extended to account for interference (I) terms that arise due to the multi-centre nature of the scattering problem, are also reported. The sum of those ICSs gives the IAM-SCAR+I total cross section for electron-furfural scattering. Where possible, those calculated IAM-SCAR+I ICS results are compared against corresponding results from the present measurements with an acceptable level of accord being obtained. Similarly, but only for the band I and band II excited electronic states, we also present results from our Schwinger multichannel method with pseudopotentials calculations. Those results are found to be in good qualitative accord with the present experimental ICSs. Finally, with a view to assembling a complete cross section data base for furfural, some binary-encounter-Bethe-level total ionization cross sections for this collision system are presented. (C) 2016 AIP Publishing LLC.


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©2016 AIP Publishing LLC.
D.B.J. thanks the Australian Research Council (ARC) for financial support provided through a Discovery Early Career Research Award, while M.J.B. also thanks the ARC for their support. M.J.B. acknowledges the Brazilian agency CNPq for his "Special Visiting Professor" position at the Federal University of Juiz de Fora. G.G. acknowledges partial financial support from the Spanish Ministry MINECO (Project No. FIS2012-31230) and the European Union COST Action No. CM1301 (CELINA). Finally R.F.C., M.T.doN.V, M.H.F.B, and M.A.P.L. also acknowledge support from CNPq, while M.T.doN.V. thanks FAPESP.

Uncontrolled Keywords:Low energy electron; Impact excitation; Pseudopotentials.
Subjects:Sciences > Physics > Nuclear physics
ID Code:37989
Deposited On:07 Jun 2016 14:52
Last Modified:10 Dec 2018 14:57

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