ELECTRON-IMPACT EXCITATION OF 5(1)S - 5(1)P(o) RESONANCE TRANSITION IN Sr ATOM

被引：2

作者：

Nagy, E. A. ^{[1
]}

Gedeon, V. F. ^{[1
]}

Gedeon, S., V ^{[1
]}

Lazur, V. Yu ^{[1
]}

机构：

[1] Uzhgorod Natl Univ, 54 Voloshyna Str, UA-88000 Uzhgorod, Ukraine

来源：

UKRAINIAN JOURNAL OF PHYSICS | 2018年 / 63卷 / 01期

关键词：

strontium atom; electron-atom collisions; resonance transition; B-spline R-matrix method; scattering cross-sections; resonances;

D O I：

10.15407/ujpe63.01.0011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Main aspects of a new version of the B -spline R-matrix (BSR) method, in which nonorthogonal orbitals are applied, have been described. The BSR approximation is used to calculate the resonance structure of integral cross-sections of the 5(1)S -> 5 P-1(o) transition at the electron scattering by a strontium atom in the energy interval up to 10 eV. The multiconfiguration Hartree-Fock method with a nonorthogonal set of orbitals is employed to accurately represent the target wave functions. The close-coupling expansion included S1 bound states of a neutral strontium atom ranging from the ground state to the 5s5f F-1(o) one. The calculated cross-sections are in good agreement with available experimental data and can be exhaustively interpreted. The structure of a resonance feature in the e-Sr scattering cross-sections at about 4 eV is discussed.

引用

页码：11 / 24

页数：14

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