Cross sections for electron scattering by carbon disulfide in the low- and intermediate-energy range

被引：7

作者：

Brescansin, L. M. ^{[1
]}

Iga, I. ^{[2
]}

Machado, L. E. ^{[3
]}

Michelin, S. E. ^{[4
]}

Lee, M. -T. ^{[2
]}

机构：

[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil

[4] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

MOLECULAR CALCULATIONS; IMAGINARY PART; BASIS-SETS; CS2; MODEL; IONIZATION; OCS; COLLISIONS; STATES; ATOMS;

D O I：

10.1103/PhysRevA.81.012709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we report a theoretical study on e(-)-CS2 collisions in the low- and intermediate-energy ranges. Elastic differential, integral, and momentum-transfer cross sections, as well as grand total (elastic+inelastic) and absorption cross sections, are reported in the 1-1000 eV range. A recently proposed complex optical potential composed of static, exchange, and correlation-polarization plus absorption contributions is used to describe the electron-molecule interaction. The Schwinger variational iterative method combined with the distorted-wave approximation is applied to calculate the scattering amplitudes. The comparison between our calculated results and the existing experimental and/or theoretical results is encouraging.

引用

页数：6

共 30 条

[1] Electron collisions with CS2 [J].

Bettega, MHF ;

Lima, MAP ;

Ferreira, LG .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2005, 38 (13) :2087-2095

[2] Elastic scattering of low-energy electrons by carbon disulphide [J].

Bettega, MHF ;

Natalense, APP ;

Lima, MAP ;

Ferreira, LG .

BRAZILIAN JOURNAL OF PHYSICS, 2000, 30 (01) :189-194

[3] Elastic differential cross sections for electron scattering from SF6 and CS2 [J].

Bhushan, K. G. ;

Rao, K. C. ;

Gadkari, S. C. ;

Yakhmi, J. V. ;

Gupta, S. K. .

PHYSICAL REVIEW A, 2009, 79 (01)

[4] Improvements on the imaginary part of a non-empirical model potential for electron scattering (30 to 10000 eV energies) [J].

Blanco, F ;

García, G .

PHYSICS LETTERS A, 2002, 295 (04) :178-184

[5] Improved non-empirical absorption potential for electron scattering at intermediate and high energies:: 30-10 000 eV [J].

Blanco, F ;

García, G .

PHYSICS LETTERS A, 1999, 255 (03) :147-153

[6]

BOTTCHER CJF, 1973, THEORY ELECT POLARIZ, P332

[7] GAUSSIAN BASIS FUNCTIONS FOR USE IN MOLECULAR CALCULATIONS .3. CONTRACTION OF (10S6P) ATOMIC BASIS SETS FOR FIRST-ROW ATOMS [J].

DUNNING, TH .

JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (02) :716-+

[8] DISTORTED-WAVE-APPROXIMATION CROSS-SECTIONS FOR EXCITATION OF THE B 3-SIGMA-U+ AND B 1-SIGMA-U+ STATES OF H-2 BY LOW-ENERGY-ELECTRON IMPACT [J].

FLIFLET, AW ;

MCKOY, V .

PHYSICAL REVIEW A, 1980, 21 (06) :1863-1875

[9] MEASUREMENTS OF ELECTRON-IMPACT-IONIZATION CROSS-SECTIONS OF N2, CO, CO2, CS, S2, CS2, AND METASTABLE N2 [J].

FREUND, RS ;

WETZEL, RC ;

SHUL, RJ .

PHYSICAL REVIEW A, 1990, 41 (11) :5861-5868

[10] Low-energy electron scattering from gaseous CS2:: angular distributions and effect of exchange forces [J].

Gianturco, F. A. ;

Stoecklin, T. .

EUROPEAN PHYSICAL JOURNAL D, 2007, 42 (01) :85-91

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