By employing the recently developed relativistic normal coupled-cluster theory, we obtained the electric dipole moment (EDM) of 225 Ra due to nuclear Schiff moment (NSM) and tensor–pseudotensor (T–PT) electron–nucleus (e–N) interaction as −6.3(5) × 10 −17 S |e| cm/(|e| fm 3 ) and −13(1) × 10 −20 C T ⟨ σ N ⟩ |e| cm, respectively, for the NSM S , T–PT coupling coefficient C T and nuclear Pauli spinor σ N . This is corroborated by analyzing the dipole polarizability value of 225 Ra, which is obtained as 257(8) ##IMG## [http://ej.iop.org/images/0953-4075/53/19/195004/baba6aaieqn1.gif] {$e{a}_{0}^{3}$} . Our EDM results, in combination with the measurement (2015 Phys. Rev. Lett. 114 233002), are about 8% and 28% improvements over the limits that were reported using the relativistic coupled-cluster theory for the NSM and T–PT e–...

中文翻译：

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通过改进的225 Ra原子电偶极矩的计算重新评估P，T奇数参数

通过使用最近发展的相对论正态耦合簇理论，由于核席夫矩（NSM）和张量-拟张量（T-PT）电子-核（e-N）相互作用，我们获得了225 Ra的电偶极矩（EDM）为−6.3（5）×10 -17 S | e | cm /（| e | fm 3）和-13（1）×10 -20 CT⟨σN⟩| e | 对于NSM S，T–PT耦合系数CT和核Pauli旋子σN分别为cm。这是通过分析225 Ra的偶极极化率值得到的，该值是257（8）## IMG ## [http://ej.iop.org/images/0953-4075/53/19/195004/baba6aaieqn1 .gif] {$ e {a} _ {0} ^ {3} $}。我们的EDM结果与测量结果（2015 Phys。Rev. Lett。114 233002）结合使用，相对于使用NSM和T–PT e的相对论耦合聚类理论报告的极限值分别提高了8％和28％ –