中国物理B ›› 2012, Vol. 21 ›› Issue (9): 93401-093401.doi: 10.1088/1674-1056/21/9/093401

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

(e, 2e) triple-differential cross sections for Ag+(4p, 4s) in coplanar symmetric geometry

周丽霞, 燕友果   

  1. College of Science, China University of Petroleum, Qingdao 266580, China
  • 收稿日期:2011-11-11 修回日期:2012-03-03 出版日期:2012-08-01 发布日期:2012-08-01
  • 基金资助:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. Q2008A07).

(e, 2e) triple-differential cross sections for Ag+(4p, 4s) in coplanar symmetric geometry

Zhou Li-Xia (周丽霞), Yan You-Guo (燕友果)   

  1. College of Science, China University of Petroleum, Qingdao 266580, China
  • Received:2011-11-11 Revised:2012-03-03 Online:2012-08-01 Published:2012-08-01
  • Contact: Zhou Li-Xia E-mail:zhoulx@upc.edu.cn
  • Supported by:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. Q2008A07).

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摘要： The (e, 2e) triple-differential cross sections of Ag+(4p, 4s) were calculated based on the three-body distorted-wave Born approximation considering post-collision interaction in coplanar symmetric geometry. The energy of outgoing electron was set to be 50, 70, 100, 200, 300, 500, 700, and 1000 eV, and the intensity and splitting of forward and backward peaks were discussed in detail. Some new structures were observed around 15° and 85° for 4p and 4s orbitals. Structures in triple-differential cross sections at 15° have been reported for the first time. A double-binary collision was proposed to explain the formation of such structures. The structures at 85° were also considered as the result of one kind of double-binary collision.

关键词: (e, 2e) process, distorted-wave Born approximation, triple-differential cross section, coplanar symmetric geometry

Abstract: The (e, 2e) triple-differential cross sections of Ag+(4p, 4s) were calculated based on the three-body distorted-wave Born approximation considering post-collision interaction in coplanar symmetric geometry. The energy of outgoing electron was set to be 50, 70, 100, 200, 300, 500, 700, and 1000 eV, and the intensity and splitting of forward and backward peaks were discussed in detail. Some new structures were observed around 15° and 85° for 4p and 4s orbitals. Structures in triple-differential cross sections at 15° have been reported for the first time. A double-binary collision was proposed to explain the formation of such structures. The structures at 85° were also considered as the result of one kind of double-binary collision.

Key words: (e, 2e) process, distorted-wave Born approximation, triple-differential cross section, coplanar symmetric geometry

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))