镉原子J=2偶宇称Rydberg系列寿命的研究  

Longevity studies on the J=2 even-parity Rydberg series of CdⅠ

作　　者：周超[1] 梁良[1] 张玲[1] 许启明[2] 

机构地区：[1]西安建筑科技大学理学院,陕西西安710055 [2]西安建筑科技大学材料学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2007年第2期286-288,共3页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：陕西省教育厅专项科研基金资助项目(04JK128);西安建筑科技大学基础研究基金资助项目(JC0510)

摘　　要：利用多通道量子亏损理论(MQDT)对现有的镉原子实验能级及寿命进行了分析,在此基础上,对镉原子J=2偶宇称的能谱采用一阀两通道模型,通过拟合实验光谱数据得到了MQDT参数;并利用MQDT波函数给出了计算高激发态寿命的一般方法,计算得到了5snd1/2[5/2]2(6≤n≤23)系列Rydberg态共18个能级和寿命,预言了该系列4个Rydberg态的新的能级位置和14个新的能级寿命,拟合出了它们的寿命计算公式:τ=0.39632nν.784.An analysis of Cd I＇s existing experimental energy levels and lifetimes are given by Multichannel Quantum Defect Theory （for short MQDT）. On this condition, the energy spectrum of Cd I even-parity J=2, a model having one ionization limit and two channels is adopted, and its MQDT parameters are obtained by fitting experimental spectrum data. A general calculation method of the lifetime of high excited state is obtained by means of wave function of MQDT. Then the total 18 energy levels and lifetimes of 5snd1/2[5/2]2（6≤n≤23） Rydberg series were derived from the calculation, and 4new energy levels and 14 new lifetimes of this series＇ Rydberg state are predicted. In addition, the fitted formula of their lifetimes is given as follows ;τ=0.39632nν.784.

关 键 词：多通道量子数亏损理论 RYDBERG系列 寿命 

分 类 号：O562.1[理学—原子与分子物理]