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Total, elastic, and inelastic cross sections for positron and electron collisions with tetrahydrofuran

Chiari, Luca; Anderson, Emma; Tattersall, Wade; Machacek, J. R; Palihawadana, Prasanga; Makochekanwa, Casten; Sullivan, James; García, Gustavo; Blanco, Francisco; McEachran, R. P.; Brunger, M. J.; Buckman, Stephen

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We present total, elastic, and inelastic cross sections for positron and electron scattering from tetrahydrofuran (THF) in the energy range between 1 and 5000 eV. Total cross sections (TCS), positronium formation cross sections, the summed inelastic integral cross sections (ICS) for electronic excitations and direct ionization, as well as elastic differential cross sections (DCS) at selected incident energies, have been measured for positron collisions with THF. The positron beam used to carry...[Show more]

dc.contributor.authorChiari, Luca
dc.contributor.authorAnderson, Emma
dc.contributor.authorTattersall, Wade
dc.contributor.authorMachacek, J. R
dc.contributor.authorPalihawadana, Prasanga
dc.contributor.authorMakochekanwa, Casten
dc.contributor.authorSullivan, James
dc.contributor.authorGarcía, Gustavo
dc.contributor.authorBlanco, Francisco
dc.contributor.authorMcEachran, R. P.
dc.contributor.authorBrunger, M. J.
dc.contributor.authorBuckman, Stephen
dc.date.accessioned2015-09-21T04:34:59Z
dc.date.available2015-09-21T04:34:59Z
dc.identifier.issn0021-9606
dc.identifier.urihttp://hdl.handle.net/1885/15605
dc.description.abstractWe present total, elastic, and inelastic cross sections for positron and electron scattering from tetrahydrofuran (THF) in the energy range between 1 and 5000 eV. Total cross sections (TCS), positronium formation cross sections, the summed inelastic integral cross sections (ICS) for electronic excitations and direct ionization, as well as elastic differential cross sections (DCS) at selected incident energies, have been measured for positron collisions with THF. The positron beam used to carry out these experiments had an energy resolution in the range 40-100 meV (full-width at half-maximum). We also present TCS results for positron and electron scattering from THF computed within the independent atom model using the screening corrected additivity rule approach. In addition, we calculated positron-impact elastic DCS and the sum over all inelastic ICS (except rotations and vibrations). While our integral and differential positron cross sections are the first of their kind, we compare our TCS with previous literature values for this species. We also provide a comparison between positron and electron-impact cross sections, in order to uncover any differences or similarities in the scattering dynamics with these two different projectiles.
dc.description.sponsorshipThe authors gratefully acknowledge the Australian Research Council (ARC) Centres of Excellence Program for funding. C.M. is also grateful to the ARC for financial support under the Australian Postdoctoral Fellowship program. G.G. and F.B. would like to acknowledge the Spanish Ministerio de Economía y Productividad (Project No. FIS2009- 10245) and the European Science Foundation (COST Action MP1002 – Nano-IBCT) for financial support.
dc.publisherAmerican Institute of Physics
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0021-9606..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 21/09/15). Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at https://doi.org/10.1063/1.4789584
dc.sourceThe Journal of Chemical Physics
dc.subjectfurans
dc.subjectmolecular conformation
dc.subjectoptical processes
dc.subjectthermodynamics
dc.subjectelasticity
dc.subjectelectrons
dc.subjectmodels, molecular
dc.titleTotal, elastic, and inelastic cross sections for positron and electron collisions with tetrahydrofuran
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume138
dc.date.issued2013
local.identifier.absfor020201
local.identifier.ariespublicationf5625xPUB2506
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationChiari, Luca, Flinders University, Australia
local.contributor.affiliationAnderson, Emma, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationTattersall, Wade, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationMachacek, Joshua, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationPalihawadana, Prasanga, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationMakochekanwa, Casten, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationSullivan, James, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationGarcia, Gustavo, CSIC (Spanish National Research Council), Spain
local.contributor.affiliationBlanco, Francisco, Universidad Complutense de Madrid, Spain
local.contributor.affiliationMcEachran, Robert, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.contributor.affiliationBrunger, Michael J, Flinders University, Australia
local.contributor.affiliationBuckman, Stephen, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Atomic and Molecular Physics Laboratories, The Australian National University
local.identifier.essn1089-7690
local.bibliographicCitation.issue7
local.bibliographicCitation.startpage074301
local.bibliographicCitation.lastpage15
local.identifier.doi10.1063/1.4789584
local.identifier.absseo970102
dc.date.updated2015-12-11T07:30:53Z
local.identifier.scopusID2-s2.0-84874507978
local.identifier.thomsonID000315263500018
CollectionsANU Research Publications

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