Differential, elastic integral and moment transfer cross sections for electron scattering from N2 at intermediate- and high-energies

doi:10.1088/1009-1963/14/2/019

中国物理B ›› 2005, Vol. 14 ›› Issue (2): 331-335.doi: 10.1088/1009-1963/14/2/019

Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies

施德恒¹, 刘玉芳², 孙金锋³, 朱遵略³, 杨向东⁴

(1)College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China; (2)Department of Physics, Henan Normal University, Xinxiang 453007, China; (3)Department of Physics, Henan Normal University, Xinxiang 453007, China; Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; (4)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

收稿日期:2004-07-21 修回日期:2004-09-30 出版日期:2005-03-02 发布日期:2005-03-02
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10174019).

Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies

Shi De-Heng (施德恒)^abc, Liu Yu-Fang (刘玉芳)^b, Sun Jin-Feng (孙金锋)^bc, Zhu Zun-Lue (朱遵略)^bc, Yang Xiang-Dong (杨向东)^c

^a College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, China; ^b Department of Physics, Henan Normal University, Xinxiang 453007, China; ^c Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China

Received:2004-07-21 Revised:2004-09-30 Online:2005-03-02 Published:2005-03-02
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No 10174019).

摘要/Abstract

摘要： A complex optical model potential modified by incorporating the concept of bonded atom, with the overlapping effect of electron clouds between two atoms in a molecule taken into consideration, is firstly employed to calculate the differential cross sections, elastic integral cross sections, and moment transfer cross sections for electron scattering from molecular nitrogen over the energy range 300—1000eV by using additivity rule model at Hartree—Fock level. The bonded-atom concept is used in the study of the complex optical model potential composed of static, exchange, correlation polarization and absorption contributions. The calculated quantitative molecular differential cross sections, elastic integral cross sections, and moment transfer cross sections are compared with the experimental and theoretical ones wherever available, and they are found to be in good agreement with each other. It is shown that the additivity rule model together with the complex optical model potential modified by incorporating the concept of bonded atom is completely suitable for the calculations of differential cross section, elastic integral cross section and moment transfer cross section over the intermediate- and high-energy ranges.

关键词: electron scattering, additivity rule, differential cross section, elastic integral cross section, moment transfer cross section

Abstract: A complex optical model potential modified by incorporating the concept of bonded atom, with the overlapping effect of electron clouds between two atoms in a molecule taken into consideration, is firstly employed to calculate the differential cross sections, elastic integral cross sections, and moment transfer cross sections for electron scattering from molecular nitrogen over the energy range 300—1000eV by using additivity rule model at Hartree—Fock level. The bonded-atom concept is used in the study of the complex optical model potential composed of static, exchange, correlation polarization and absorption contributions. The calculated quantitative molecular differential cross sections, elastic integral cross sections, and moment transfer cross sections are compared with the experimental and theoretical ones wherever available, and they are found to be in good agreement with each other. It is shown that the additivity rule model together with the complex optical model potential modified by incorporating the concept of bonded atom is completely suitable for the calculations of differential cross section, elastic integral cross section and moment transfer cross section over the intermediate- and high-energy ranges.

Key words: electron scattering, additivity rule, differential cross section, elastic integral cross section, moment transfer cross section

中图分类号: (Electron and positron scattering)

34.80.-i

31.15.xr (Self-consistent-field methods)

施德恒, 刘玉芳, 孙金锋, 朱遵略, 杨向东. Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies[J]. 中国物理B, 2005, 14(2): 331-335.

Shi De-Heng (施德恒), Liu Yu-Fang (刘玉芳), Sun Jin-Feng (孙金锋), Zhu Zun-Lue (朱遵略), Yang Xiang-Dong (杨向东). Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies[J]. Chinese Physics, 2005, 14(2): 331-335.

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Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies

Differential, elastic integral and moment transfer cross sections for electron scattering from N₂ at intermediate- and high-energies

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