Calculation of the parity and time reversal violating interaction in ^{225}RaO

Abstract

The 10-electron generalized relativistic effective core potential and the corresponding correlation spin-orbital basis sets are generated for the Ra atom and the relativistic coupled cluster calculations for the RaO molecule are performed. The main goal of the study is to evaluate the P,T-odd parameter X characterized by the molecular electronic structure and corresponding to a "volume effect" in the interaction of the ^{225}Ra nucleus Schiff moment with electronic shells of RaO. Our final result for X(^{225}RaO) is -7532 which is surprisingly close to that in ^{205}TlF but has different sign. The obtained results are discussed and the quality of the calculations is analyzed. The value is of interest for a proposed experiment on RaO [PRA 77, 024501 (2008)] due to a very large expected Schiff moment of the ^{225}Ra nucleus.

5 pages, corrected the erroneous signs of H_eff and w_ex_e from 10.1103/PhysRevA.87.020102

References in corpus (5)

• Improved limit on the permanent electric dipole moment of 199Hg
• Towards the search of electron electric dipole moment: correlation calculations of the P,T-violation effect in the Eu${}^{++}$ cation
• Towards the electron EDM search. Theoretical study of PbF
• Hyperfine and Zeeman interactions of the $a(1){[}^3{\Sigma }_1^{+}]$ state of PbO
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• Opportunities for Fundamental Physics Research with Radioactive Molecules
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• Theoretical study of HfF${}^{+}$ cation to search for the T,P-odd interactions
• Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top Molecules
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• Study of the scalar-pseudoscalar interaction in the francium atom
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• Enhanced effect of CP-violating nuclear magnetic quadrupole moment in HfF${}^{+}$ molecule
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• Actinide and lanthanide molecules to search for strong CP-violation
• Enhanced nuclear Schiff moment in stable and metastable nuclei
• Laser-coolable AcOH${}^{+}$ ion for $\mathcal{C}\mathcal{P}$-violation searches
• Ab initio study and assignment of electronic states in molecular RaCl
• Relativistic Exact Two-Component Coupled-Cluster Study of Molecular Sensitivity Factors for Nuclear Schiff Moments
• Time- and parity-violating effects of nuclear Schiff moment in molecules and solids
• Effect of the neutron quadrupole distribution in the TaO${}^{+}$ cation
• Relativistic atomic structure calculations in support of spectroscopy
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• A survey of nuclear quadrupole deformation in order to estimate the nuclear MQM and its relative contribution to the atomic EDM