| Texto completo | |
| Autor(es): |
Hlousek, B. A.
[1]
;
Martin, M. F.
[1]
;
Zawadzki, M.
[1, 2]
;
Khakoo, M. A.
[1]
;
Machado, L. E.
[3]
;
Lucchese, R. R.
[4]
;
da Mata, V. A. S.
[5]
;
Iga, I.
[5]
;
Lee, M-T
[5]
;
Homem, M. G. P.
[5]
Número total de Autores: 10
|
| Afiliação do(s) autor(es): | [1] Calif State Univ Fullerton, Dept Phys, Fullerton, CA 92834 - USA
[2] Gdansk Univ Technol, Atom Phys Div, Dept Atom Mol & Opt Phys, Fac Appl Phys & Math, Ul G Narutowicza 11-12, PL-80233 Gdansk - Poland
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[4] Texas A&M Univ, Dept Chem, College Stn, TX 77842 - USA
[5] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 52, n. 2 JAN 28 2019. |
| Citações Web of Science: | 1 |
| Resumo | |
We report a theoretical-experimental investigation of electron scattering by dichloromethane (CH2Cl2 ) in the low- and intermediate energy ranges. Experimental elastic differential cross sections (DCS), in the incident electron energy range of 0.5-800 eV and scattering angle range of 10 degrees-130 degrees, were measured using a crossed beam relative flow technique. Integral and momentum transfer cross sections were determined from the experimental DCS. Theoretical elastic differential, integral, and momentum-transfer, as well as grand-total, and total absorption cross sections were also calculated for impact energies ranging from 0.5 to 500 eV. A complex optical Hartree-Fock potential represented the electron-target interaction and a single-center expansion method combined with a Pade approximation was used to solve the scattering equations. Three resonances: a (2)A(1) C-Cl k sigma{*} resonance centered at about 3.5 eV, a B-2(2) C-Cl k sigma{*} resonance centered at about 5 eV and a broad (2)A(1) C-H k sigma{*} resonance at about 10 eV were detected in our calculation. Further calculations of DCS were performed at an intermediate energy range of 50-800 eV, using the independent-atom model in which the atomic complex optical potential and partial-wave method were used to obtain atomic scattering amplitudes. Comparisons of our experimental and theoretical data with very recent experimental and theoretical results are made. (AU) | |
| Processo FAPESP: | 15/08258-2 - Seções de choque para a interação de elétrons com moléculas orgânicas voláteis |
| Beneficiário: | Manoel Gustavo Petrucelli Homem |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |