Charge transfer in collisions of atomic hydrogen with N7+ ions in the high-energy region.
Charge transfer in collisions of atomic hydrogen with N7+ ions in the high-energy region.
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DOI：
10.1103/physreva.36.1656
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发表时间：
1987-08
期刊：
影响因子：
--
通讯作者：
Saha;Datta;Mukherjee
中科院分区：
文献类型：
--
作者：
Saha;Datta;Mukherjee
在连续介质扭曲波近似的框架下，发展了一种计算类氢靶任意n/subi/L/subi/m/subi/壳与快速裸弹任意n/subf/L/subf/m/subf/壳碰撞电子俘获截面的方法。利用终止级数中的高斯超几何函数，导出了闭合形式的库仑积分的解析表达式。作为应用，计算了N/sup 7+/+H(1s)碰撞在10-40 MeV能量范围内的截面，并与已有的理论计算进行了比较。通过对n大于或等于7能级应用n/sup-3/定律计算了总的电荷转移截面。
A method to calculate electron-capture cross sections for collisions between an arbitrary n/sub i/l/sub i/m/sub i/ shell of a hydrogenic target and an arbitrary n/sub f/l/sub f/m/sub f/ shell of a fast bare projectile has been developed in the framework of the continuum distorted-wave approximation. Analytical expressions are derived for the Coulomb integrals in closed form in terms of Gauss hypergeometric functions in a terminating series. As an application, the cross sections in N/sup 7+/+H(1s) collisions are calculated in the energy range between 10 and 40 MeV and compared with existing theoretical calculations. The total charge-transfer cross sections have been evaluated by applying an n/sup -3/ law for n greater than or equal to 7 levels.