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arXiv 0710.4045physics.atom-ph
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闭壳层原子电偶极矩相对论多体理论的新表述

A new formulation of the relativistic many-body theory of electric dipole moments of closed shell atoms

K V P Latha, Dilip Angom, Rajat K Chaudhuri, B P Das, Debashis Mukherjee

摘要:

闭壳层原子的电偶极矩对原子核中的宇称和时间反演破坏现象非常敏感。核的Schiff矩就是这样一种性质,它是由夸克-夸克相互作用的宇称和时间反演破坏以及夸克-色电偶极矩产生的。利用相对论耦合集团理论计算了原子$^{199}{\rm Hg}$的电偶极矩。这是迄今为止最准确的数量计算。结合实验数据,我们的计算为在基本粒子水平上研究P和T破坏耦合常数提供了重要的启示。此外,还提出了一个新的限制张量-赝张量诱导的原子EDM,使用相对论耦合集团理论计算。

英文摘要:

The electric dipole moments of closed-shell atoms are sensitive to the parity and time-reversal violating phenomena in the nucleus. The nuclear Schiff moment is one such property, it arises from the parity and time reversal violating quark-quark interactions and the quark-chromo electric dipole moments. We calculate the electric dipole moment of atomic $^{199}{\rm Hg}$ arising from the nuclear Schiff moment using the relativistic coupled-cluster theory. This is the most accurate calculation of the quantity to date. Our calculations in combination with the experiment data provide important insights to the P and T violating coupling constants at the elementary particle level. In addition, a new limit on the tensor-pseudo tensor induced atomic EDM, calculated using the relativistic coupled-cluster theory is also presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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