Theoretical study of some experimentally relevant states of dysprosium
Theoretical study of some experimentally relevant states of dysprosium
复制标题
镝的一些实验相关态的理论研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
V. Flambaum
中科院分区：
文献类型：
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作者：
V. Dzuba;V. Flambaum
用组态相互作用方法计算了用于冷却、精细结构常数随时间变化和基本对称性破坏的低态Dy的跃迁幅度等性质。发现冷态衰变到基态以外的其他态的分支比小于10{sup-4}。简并态之间在E=19797.96 cm{sup-1}处的弱相互作用矩阵元约为4 Hz，与实验极限|H{subW}|=|2.32.9(系统)|+-0.7(系统)|HZ[A.T.Nguyen，D.Budker，D.DeMille，M.Zolotorev，Phys.A 56,3453(1997)]并指出其实验测量的可行性。应用包括使用宇称非守恒(PNC)同位素链方法寻找超越标准模型的物理。
Configuration interaction method is used to calculate transition amplitudes and other properties of the low states of dysprosium which are used in cooling and in the study of the time variation of the fine structure constant and violation of fundamental symmetries. The branching ratio for the cooling state to decay to states other than ground states is found to be smaller than 10{sup -4}. The matrix element of the weak interaction between degenerate states at E=19797.96 cm{sup -1} is about 4 Hz which is consistent with the experimental limit |H{sub W}|=|2.3{+-}2.9(stat.){+-}0.7(syst.)| Hz [A. T. Nguyen, D. Budker, D. DeMille, and M. Zolotorev, Phys. Rev. A 56, 3453 (1997)] and points to feasibility of its experimental measurement. Applications include the search for physics beyond the standard model using the parity nonconservation (PNC) isotopic chain approach.