P,T -Odd Tensor-Pseudotensor Interactions in atomic $^{199}$Hg and $^{225}$Ra
Résumé
Highly correlated pure ab initio relativistic configuration-interaction theory is in the present paper applied to the calculation of the tensor-pseudotensor P,T-violating nucleon-electron interaction constant in the electronic ground states of atomic mercury and radium. The final best obtained results are RT(Hg)=−4.43 [10−20〈σN〉ecm] and RT(Ra)=−15.0 [10−20〈σN〉ecm]. The accuracy of the employed electronic-structure models are confirmed by determining the static electric-dipole polarizability αd(Hg)=35.7 a.u. which is in accord with the experimental value to about 5%. RT(Ra) will be useful for constraining (or obtaining) the CP-violating parameter CT when combined with future measurements of the electric-dipole moment of the radium atom.