中国物理B ›› 2009, Vol. 18 ›› Issue (9): 3833-3838.doi: 10.1088/1674-1056/18/9/036

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Theoretical calculation of photoionization cross sections of B-like ions: N2+, O3+ and F4+

王国利1, 周效信2   

  1. (1)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; (2)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;Joint Laboratory of Atomic and Molecular Physics, NWNU & IMP CAS, Lanzhou 730070, China
  • 收稿日期:2009-01-22 修回日期:2009-03-20 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10674112), the Natural Science Foundation of the Gansu Province, China (Grant No 3ZS061-A25-013), the Foundation of Education Department of Gansu Province, China (Grant No 0601223), the Foundation of Northwest Normal University, China (Grant No NWNU-KJCXGC-03-21) and the Foundation for Young Teacher of Northwest Normal University, China (Grant No NWNU-LKQN-08-5).

Theoretical calculation of photoionization cross sections of B-like ions: N2+, O3+ and F4+

Wang Guo-Li(王国利)a) and Zhou Xiao-Xin(周效信)a)b)   

  1. a College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; b Joint Laboratory of Atomic and Molecular Physics, NWNU & IMP CAS, Lanzhou 730070, China
  • Received:2009-01-22 Revised:2009-03-20 Online:2009-09-20 Published:2009-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10674112), the Natural Science Foundation of the Gansu Province, China (Grant No 3ZS061-A25-013), the Foundation of Education Department of Gansu Province, China (Grant No 0601223), the Foundation of Northwest Normal University, China (Grant No NWNU-KJCXGC-03-21) and the Foundation for Young Teacher of Northwest Normal University, China (Grant No NWNU-LKQN-08-5).

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摘要： There can be found some notable discrepancies with regard to the resonance structures when R-matrix calculations from the Opacity Project and other sources are compared with recent absolute experimental measurements of Bizau et al [Astron. Astrophts. 439 387 (2005)] for B-like ions N2+, O3+ and F4+. We performed close-coupling calculations based on the R-matrix formalism for the photoionizations of ions mentioned above both for the ground states and first excited states in the near threshold regions. The present results are compared with experimental ones given by Bizau et al and earlier theoretical ones. Excellent agreement is obtained between our theoretical results and the experimental photoionization cross sections. The present calculations show a significant improvement over the previous theoretical results.

Abstract: There can be found some notable discrepancies with regard to the resonance structures when R-matrix calculations from the Opacity Project and other sources are compared with recent absolute experimental measurements of Bizau et al [Astron. Astrophts. 439 387 (2005)] for B-like ions N2+, O3+ and F4+. We performed close-coupling calculations based on the R-matrix formalism for the photoionizations of ions mentioned above both for the ground states and first excited states in the near threshold regions. The present results are compared with experimental ones given by Bizau et al and earlier theoretical ones. Excellent agreement is obtained between our theoretical results and the experimental photoionization cross sections. The present calculations show a significant improvement over the previous theoretical results.

Key words: photoionization, N2+, O3+, F4+, resonance

中图分类号:  (Photoionization of atoms and ions)

  • 32.80.Fb
31.15.-p (Calculations and mathematical techniques in atomic and molecular physics) 32.80.Zb (Autoionization)