Na^(**)-He热碰撞的l-混合跃迁截面的计算

The Calculation of l mixing Transition Cross Section in Na ** He Thermal Collision

本文使用数值的Ｘα波函数〔１〕和最小二乘法得到了拟合的Ｒｙｄｂｅｒｇ原子Ｎａ（ｎｄ），（６≤ｎ≤１２）的Ｘα波函数，并应用在Ｆｅｒｍｉ近自由电子模型基础上的冲击近似方法计算出Ｎａ＊＊－Ｈｅ热碰撞的ｌ－混合跃迁截面．当主量子数ｎ处于中间区域即（６≤ｎ≤１２）时，数值计算结果与文献〔２〕相比有明显改善．

The fitted Xα wave function of Rydberg atom Na(nd) (6≤n≤12) was obtained with the method of least squares and numerical Xα wave function. With the method of impulse approximation based on Fermis free electronic model, the l mixing transition section in Na ** He thermal collision was calculated. When principal number n lies in the intermediate range of 6 to 12, The numerical calculation results are improved obviously as compared with those by reference 2 .