Coupled Electron Pair Approximation Calculation of the Electric Dipole Moment of Atomic Yb

Details Coupled Electron Pair Approximation Calculation of the Electric Dipole Moment of Atomic Yb Coupled Electron Pair Approximation Calculation of the Electric Dipole Moment of Atomic Yb

2001-11-22

arxiv.org/abs/physics/0111165v1

Physics

Atomic Physics

19 pages, 13 figures

Scientific paper

The existence of a finite electric dipole moment (EDM) d_a of the closed-shell atom Yb implies parity and time reversal violations involving the nuclear sector. An important effect which can contribute to the Yb EDM is the tensor-pseudotensor electron-nucleus interaction characterized by the coupling constant C_T. Within the Standard Model (SM) of particle physics C_T=0, as this form of interaction is not allowed. If a finite d_a of Yb is observed in experiments, then an estimate of C_T can be obtained by combining with the theoretical calculations. A non-zero C_T implies physics beyond the standard model. In this paper we present the result of our ab initio calculation of the EDM Yb using different many-body methods.

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