-
应用双中心原子轨道强耦合方法研究了H+与里德伯态原子Li(5d)碰撞的电荷转移过程,计算了电子转移到氢原子各个n,l壳层(这里n为主量子数,l为角量子数)的态选择截面.结果发现,电荷转移的末态主要分布在与初态电子能量5d接近的n=4—7能级,该分布随碰撞能量的变化不大;但俘获末态的l分布对入射离子能量很敏感:在1 keV左右的低能时主要分布在高l的末态,随着碰撞能量增加峰值逐渐向低l方向移动,并在l=
-
关键词:
- 电子俘获过程 /
- 双中心原子轨道强耦合方法 /
- 态选择截面
The charge exchange process in collisions of H+ with Li (5d) is investigated using the two-center atomic-orbital close-coupling method. The state-selective cross-sections are obtained in the energy range of 0.5—10 keV. It is found that the processes for capture to n=4—7 are the dominant reactions,and the n-distribution of state-selective cross-sections is weakly dependent on the collision energy. But the l-distribution of state-selective cross-sections strongly depends on the collision energy. For the lower collision energy around 1 keV,the l-distribution increases with increasing l. However,the l-distribution moves to the lower quantum number as the collision energy increases,and the maximum value appears around l=1.
计量
- 文章访问数: 8933
- PDF下载量: 997
- 被引次数: 0