中国物理B ›› 2004, Vol. 13 ›› Issue (4): 481-488.doi: 10.1088/1009-1963/13/4/012

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Momentum correlation of the final-state wavefunction for (e, 3e) collisions on helium

张穗萌   

  1. Department of Physics, West Anhui University, Lu'an 237012, China
  • 收稿日期:2003-07-10 修回日期:2003-09-28 出版日期:2004-04-22 发布日期:2004-04-20
  • 基金资助:
    Project supported by the Natural Science Foundation of Anhui Province, China (Grant No 03046203), by the Foundation for Key Research Program of Anhui Province, China (Grant No 00021091), and by the Foundation for University Talented Persons of Anhui Provi

Momentum correlation of the final-state wavefunction for (e, 3e) collisions on helium

Zhang Sui-Meng (张穗萌)   

  1. Department of Physics, West Anhui University, Lu'an 237012, China
  • Received:2003-07-10 Revised:2003-09-28 Online:2004-04-22 Published:2004-04-20
  • Supported by:
    Project supported by the Natural Science Foundation of Anhui Province, China (Grant No 03046203), by the Foundation for Key Research Program of Anhui Province, China (Grant No 00021091), and by the Foundation for University Talented Persons of Anhui Provi

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摘要： Based on our earlier paper, the momentum correlation of the four bodies in the final state is further considered for (e, 3e) processes on helium. A fivefold differential cross section (FDCS) for electron-impact double ionization of helium is calculated by use of the modified model for high incident energy (1－5.6keV). It has been found that the present results give a better description for the experimental data, as compared with the results of our earlier paper.

关键词: double ionization, (e, 3e) reaction, momentum correlation, first Born approximation

Abstract: Based on our earlier paper, the momentum correlation of the four bodies in the final state is further considered for (e, 3e) processes on helium. A fivefold differential cross section (FDCS) for electron-impact double ionization of helium is calculated by use of the modified model for high incident energy (1－5.6keV). It has been found that the present results give a better description for the experimental data, as compared with the results of our earlier paper.

Key words: double ionization, (e, 3e) reaction, momentum correlation, first Born approximation

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp
34.50.Fa (Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)) 03.65.Ge (Solutions of wave equations: bound states)