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Phys Rev Lett. 2006 Apr 28;96(16):163003. Epub 2006 Apr 26.

Relativistic coupled-cluster theory of atomic parity nonconservation: application to 137Ba+.

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  • 1NAPP Group, Indian Institute of Astrophysics, Bangalore-34, India.


We report the result of our ab initio calculation of the 6s2S1/2-->5d2D3/2 parity nonconserving electric dipole transition amplitude in 137Ba+ based on relativistic coupled-cluster theory. Considering single, double, and partial triple excitations, we have achieved an accuracy of less than 1%. If the accuracy of our calculation can be matched by the proposed parity nonconservation experiment in Ba+ for the above transition, then the combination of the two results would provide an independent nonaccelerator test of the standard model of particle physics.

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