中国物理B ›› 2005, Vol. 14 ›› Issue (11): 2208-2213.doi: 10.1088/1009-1963/14/11/011

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Total cross sections for electrons scattering from simple molecules containing the larger atom sulfur at 30--5000eV

施德恒1, 刘玉芳2, 孙金锋2, 杨向东3, 朱遵略3   

  1. (1)College of Physics & Electronic Engineering, Xinyang Normal University, Xinyang 464000, China;College of Physics & Information Engineering, Henan Normal University, Xinxiang 453007, China;Institute of Atomic and Molecular Physics, Sichuan University, Chen; (2)College of Physics & Information Engineering, Henan Normal University, Xinxiang 453007, China; (3)Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • 收稿日期:2005-05-08 修回日期:2005-06-20 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10174019).

Total cross sections for electrons scattering from simple molecules containing the larger atom sulfur at 30--5000eV

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

  1. a College of Physics & Electronic Engineering, Xinyang Normal University, Xinyang 464000, Chinab College of Physics & Information Engineering, Henan Normal University, Xinxiang 453007, Chinab Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • Received:2005-05-08 Revised:2005-06-20 Online:2005-11-20 Published:2005-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10174019).

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摘要： A complex optical model potential modified by the concept of bonded atom, which takes into consideration the overlapping effect of electron clouds, is employed to calculate the total cross sections for electrons scattering from simple molecules (SO2, H2S, OCS,CS2 and SO3) containing the larger atom, sulfur, at 30--5000eV by using the additivity rule model at Hartree--Fock level. The quantitative molecular total cross section results are compared with those obtained in experiments and other calculations wherever available, and good agreement is obtained. It is shown that the additivity rule model together with the complex optical model potential modified by the concept of bonded atom can give the results closer to the experiments than the one unmodified by it. So, the introduction of bonded-atom concept in complex optical model potential betters the accuracy of the total cross section calculations of electrons from the molecules containing the larger atom, sulfur.

关键词: atomic and molecular collision, additivity rule, bonded atom, total cross section

Abstract: A complex optical model potential modified by the concept of bonded atom, which takes into consideration the overlapping effect of electron clouds, is employed to calculate the total cross sections for electrons scattering from simple molecules (SO2, H2S, OCS,CS2 and SO3) containing the larger atom, sulfur, at 30--5000eV by using the additivity rule model at Hartree--Fock level. The quantitative molecular total cross section results are compared with those obtained in experiments and other calculations wherever available, and good agreement is obtained. It is shown that the additivity rule model together with the complex optical model potential modified by the concept of bonded atom can give the results closer to the experiments than the one unmodified by it. So, the introduction of bonded-atom concept in complex optical model potential betters the accuracy of the total cross section calculations of electrons from the molecules containing the larger atom, sulfur.

Key words: atomic and molecular collision, additivity rule, bonded atom, total cross section

中图分类号:  (Elastic scattering)

  • 34.80.Bm
31.15.xr (Self-consistent-field methods)