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Low energy positron interactions with uracil--total scattering, positronium formation, and differential elastic scattering cross sections.
Anderson, E K; Boadle, R A; Machacek, J R; Chiari, L; Makochekanwa, C; Buckman, S J; Brunger, M J; Garcia, G; Blanco, F; Ingolfsson, O; Sullivan, J P.
Afiliação
  • Anderson EK; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
  • Boadle RA; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
  • Machacek JR; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
  • Chiari L; ARC Centre for Antimatter-Matter Studies, Flinders University, GPO Box 2100, Adelaide, 5001 SA, Australia.
  • Makochekanwa C; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
  • Buckman SJ; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
  • Brunger MJ; ARC Centre for Antimatter-Matter Studies, Flinders University, GPO Box 2100, Adelaide, 5001 SA, Australia.
  • Garcia G; Instituto de Fisica Fundamental, Consejo Superior de Investigationes Cientificas (CSIC), Serrano 113-bis, E-28006 Madrid, Spain.
  • Blanco F; Departamento de Fisica Atomica, Molecular y Nuclear, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
  • Ingolfsson O; Department of Chemistry, Science Institute, University of Iceland, Reykjavík 107, Iceland.
  • Sullivan JP; ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, The Australian National University, Canberra 0200, Australia.
J Chem Phys ; 141(3): 034306, 2014 Jul 21.
Article em En | MEDLINE | ID: mdl-25053319
ABSTRACT
Measurements of the grand total and total positronium formation cross sections for positron scattering from uracil have been performed for energies between 1 and 180 eV, using a trap-based beam apparatus. Angular, quasi-elastic differential cross section measurements at 1, 3, 5, 10, and 20 eV are also presented and discussed. These measurements are compared to existing experimental results and theoretical calculations, including our own calculations using a variant of the independent atom approach.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Uracila / Elétrons Idioma: En Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Austrália
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Uracila / Elétrons Idioma: En Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Austrália