forbidden decay

9174 ms by approaching method,and the absolute absorption cross section of RQ(5) ro-vibrational line of the(3,0) band in the triple forbidden transition b1∑g+–X3∑g-.

采用连续激光腔衰荡光谱技术,通过测量O2分子三重禁戒跃迁b1∑g+X3∑g-(3,0)带RQ(5)谱线(波数17266。

For stronger forbidden transition line, two necessary conditions of theoretical calculation are metastable and enough small electron density.

讨论了禁戒跃迁出现较强谱线需要的两个条件,对满足上述条件的上层大气中的原子氧(OⅠ)和离子氧(OⅡ)的可见光波段禁戒线进行了详细的计算,并对应指出产生这些O(Ⅰ,Ⅱ)禁戒线的光化学反应。

The energy intervals, spontaneous transition possibilities and oscillator strengths of forbidden transitions for Be like ions (Z=21～92) have been calculated by relativistic many configurations method with Breit correction, QED correction and nuclear effective volume correction.

根据全相对论多组态方法 ,采用GRASP2 程序 ,系统计算了类铍离子等电子序列 (Z =2 1～ 92 )禁戒跃迁(1s2 2 pnd) 1 (n=3～ 4) (1s2 2 p3-d )0 的能级间隔、自发跃迁系数和加权振子强度。

The influence of the material density and radiant density on the strength of the forbiden spectra is considered.

本文对物质密度和辐射密度对禁戒谱线强度的影响进行了讨论，解释了通常实验室条件下禁戒谱线不出现的原因。