中国物理B ›› 2010, Vol. 19 ›› Issue (7): 73401-073401.doi: 10.1088/1674-1056/19/7/073401

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The (e, 2e) triple differential cross sections of Cu+ (3p) in coplanar asymmetric geometry

周丽霞, 燕友果, 门福殿   

  1. College of Physics Science and Technology, China University of Petroleum, Dongying 257061, China
  • 出版日期:2010-07-15 发布日期:2010-07-15
  • 基金资助:
    Project supported by Shandong Provincial Natural Science Foundation of China (Grant No. Q2008A07).

The (e, 2e) triple differential cross sections of Cu+ (3p) in coplanar asymmetric geometry

Zhou Li-Xia (周丽霞), Yan You-Guo (燕友果), Men Fu-Dian (门福殿)   

  1. College of Physics Science and Technology, China University of Petroleum, Dongying 257061, China
  • Online:2010-07-15 Published:2010-07-15
  • Supported by:
    Project supported by Shandong Provincial Natural Science Foundation of China (Grant No. Q2008A07).

摘要: The three-body distorted-wave Born approximation has been used to calculate the (e, 2e) triple differential cross sections (TDCSs) of Cu+ (3p) in different kinematical variables in coplanar asymmetric geometry. The angles 4o, 10o and 20o were selected as the scattering electron angles. Under high incident energy (≥ 500 eV) and high asymmetric detection energy, the binary peaks showed abnormal splits. Such abnormal splits have not been observed in atomic target and outer valence orbitals of ionic target, which indicates that an (e, 2e) process for inner valence orbitals of ionic target would be more complicated than outer valence orbitals. Furthermore, some pronounced peaks appeared at certain ejected angles. We considered that these pronounced peaks are probably related to one kind of double-binary collision.

Abstract: The three-body distorted-wave Born approximation has been used to calculate the (e, 2e) triple differential cross sections (TDCSs) of Cu+ (3p) in different kinematical variables in coplanar asymmetric geometry. The angles 4o, 10o and 20o were selected as the scattering electron angles. Under high incident energy (≥ 500 eV) and high asymmetric detection energy, the binary peaks showed abnormal splits. Such abnormal splits have not been observed in atomic target and outer valence orbitals of ionic target, which indicates that an (e, 2e) process for inner valence orbitals of ionic target would be more complicated than outer valence orbitals. Furthermore, some pronounced peaks appeared at certain ejected angles. We considered that these pronounced peaks are probably related to one kind of double-binary collision.

Key words: (e, 2e), distorted-wave Born approximation, triple differential cross sections, double-binary collision

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp
34.50.-s (Scattering of atoms and molecules) 31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)