Artículos de revistas
Theoretical And Experimental Investigation Of Electron Collisions With Acetone
Registro en:
Theoretical And Experimental Investigation Of Electron Collisions With Acetone. Amer Physical Soc, v. 92, p. SEP-2015.
1050-2947
WOS:000361654200014
10.1103/PhysRevA.92.032711
Autor
Homem
M. G. P.; Iga
I.; da Silva
L. A.; Ferraz
J. R.; Machado
L. E.; de Souza
G. L. C.; da Mata
V. A. S.; Brescansin
L. M.; Lucchese
R. R.; Lee
M. -T.
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) We report a joint theoretical-experimental investigation on elastic electron scattering by acetone in the low-and intermediate-energy regions. More specifically, experimental differential, integral, and momentum-transfer cross sections are given in the 30-800 eV and 10 degrees-120 degrees ranges. Theoretical cross sections are reported in the 1-500 eV interval. The experimental differential cross sections were determined using a crossed electron-beam-molecular-beam geometry, whereas the absolute values of the cross sections were obtained using the relative-flow technique. Theoretically, a complex optical potential derived from a Hartree-Fock molecular wave function was used to represent the collision dynamics, and a single-center expansion method combined with the Pade approximant technique was used to solve the scattering equations. Our experimental cross-section data are in generally good agreement with the present calculated data. Also, our calculated grand-total and total absorption cross sections are in good agreement with the experimental results reported in the literature. Nevertheless, our calculations have revealed a strong shape resonance in the B-2(2) scattering channel not clearly seen in the experimental results. Possible reasons for this fact are also discussed. 92 3
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)