中国物理B ›› 2007, Vol. 16 ›› Issue (11): 3352-3358.doi: 10.1088/1009-1963/16/11/035

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Theoretical calculation of the partial cross section for first vibrational excitation in He--H2 (D2 ,T2) collisions

沈光先, 令狐荣锋, 汪荣凯, 杨向东   

  • 出版日期:2007-11-20 发布日期:2007-11-20

Theoretical calculation of the partial cross section for first vibrational excitation in He--H2 (D2 ,T2) collisions

Shen Guang-Xian(沈光先)a)b)†, Linghu Rong-Feng(令狐荣锋)a)b), Wang Rong-Kai(汪荣凯)b), and Yang Xiang-Dong(杨向东)a)‡   

  1. a Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; b School of Sciences, Guizhou Normal University, Guiyang 550001, China
  • Online:2007-11-20 Published:2007-11-20

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Abstract: In this paper, close-coupling method was applied to the He--H$_{2}$(D$_{2}$,T$_{2})$ system, and the first vibrational excitation cross sections of `00--10, 00--12, 00--14, 00--16' at different incident energy have been calculated．By analyzing the differences of these partial wave cross sections, this paper have obtained the change rules of the partial wave cross sections with increases of quantum number, and with change of reduced mass of system. Based on the calculation,  influence on the partial wave cross sections brought by the variations in the reduced mass of systems and in the relative kinetic energy of incident atoms is discussed.  

Key words: cross section, close-coupling method, isotope

中图分类号:  (Rotational and vibrational energy transfer)

  • 34.50.Ez
31.15.-p (Calculations and mathematical techniques in atomic and molecular physics) 33.15.Mt (Rotation, vibration, and vibration-rotation constants)