Electron collisions with ethylene: The role of multichannel-coupling effects

被引：19

作者：

da Costa, Romarly F. ^{[1
,2
]}

Bettega, Marcio H. F. ^{[3
]}

Varella, Marcio T. do N. ^{[4
]}

de Oliveira, Eliane M. ^{[2
]}

Lima, Marco A. P. ^{[2
]}

机构：

[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210580 Sao Paulo, Brazil

[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Sao Paulo, Brazil

[3] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, Parana, Brazil

[4] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 05期

关键词：

IONIZATION CROSS-SECTIONS; IMPACT EXCITATION; SCATTERING; C2H4; STATE; CH4;

D O I：

10.1103/PhysRevA.90.052707

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report integral and differential cross sections for elastic and electronically inelastic (X(1)A(g) -> (a) over tilde B-3(1u))electron scattering by ethylene. The Schwinger multichannel method with pseudopotentials in the N-open-channel-coupling scheme at the static-exchange-plus-polarization approximation is employed to calculate the scattering amplitudes at impact energies ranging from 5.7 to 50 eV. We discuss the multichannel-coupling effects in the calculated cross sections, in particular, how the number of excited states included in the open-channel space impacts the convergence of the elastic and the (X(1)A(g) -> (a) over tilde B-3(1u)) excitation cross sections at higher collision energies. We found good agreement between the present calculated total cross section (which includes elastic, inelastic, and ionization contributions, the latter estimated with the binary-encounter-Bethe model) and the experimental data.

引用

页数：7

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