Convergent R-matrix with pseudostates calculations for electron-impact ionization of the n=2 states in helium

被引：14

作者：

Bartschat, K ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA

[2] Drake Univ, Dept Phys & Astron, Des Moines, IA 50311 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 23期

关键词：

Electron-impact ionization;

D O I：

10.1088/0953-4075/35/23/104

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have used the R-matrix with pseudostates method to calculate angle-integrated cross-sections for electron-impact ionization of the n = 2 states in helium. Good agreement with the convergent close-coupling results of Fursa and Bray (J. Phys. B: At. Mol. Opt. Phys. 30 (1997) 757) is obtained, thereby confirming the discrepancy with the experimental data of Dixon et al (J. Phys. B: At. Mol. Phys. 9 (1976) 2617).

引用

页码：L527 / L529

页数：3

共 6 条

[1] Electron-impact excitation of helium from the 1 1S and 2 3S states [J].

Bartschat, K .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (10) :L469-L476

[2] Electrons and photons colliding with atoms development and application of the convergent close-coupling method [J].

Bray, I ;

Fursa, DV ;

Kheifets, AS ;

Stelbovics, AT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (15) :R117-R146

[3]

COLGAN J, 2002, COMMUNICATION

[4] MEASUREMENT OF ELECTRON-IMPACT IONIZATION CROSS-SECTION OF HELIUM-ATOMS IN METASTABLE STATES [J].

DIXON, AJ ;

HARRISON, MFA ;

SMITH, ACH .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1976, 9 (15) :2617-2631

[5] Convergent close-coupling calculations of electron-helium scattering [J].

Fursa, DV ;

Bray, I .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (04) :757-785

[6]

TONTHAT D, 1977, J PHYS B-AT MOL OPT, V10, P621, DOI 10.1088/0022-3700/10/4/016

← 1 →