Microscopic Calculations of Nuclear EDM

2004/12/19 by Sachiko Oshima, Oshima, Sachiko, Takehisa Fujita +3
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-th/0412071

19 pages

arxiv created 2004/12/19 · arxiv updated 2009/12/01

Abstract

We carry out the microscopic calculations of the atomic EDM in deuterium, Xe and Hg atomic systems. Due to Schiff's theorem, we obtain the atomic EDM only from the finite nuclear size effects, but it is found that the atomic EDM is appreciably larger than expected. This is essentially due to the new mechanism in which the nuclear excitations are taken into account while atomic states stay in the ground state. The EDM of deuterium is found to be d_D ≃ 0.017 d_n while the EDM of Xe and Hg become d_{\rm Xe} ≃ 1.6 d_n and d_{\rm Hg} ≃ -2.8 d_n, respectively. It turns out that the new constraint on the neutron EDM becomes d_n ≃ (0.37± 0.17 ± 0.14)× 10^-28 \rm e⋅ \rm cm.

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