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The Schiff moment, $\smij$, is a parity and time reversal violating fermion-fermion coupling. The nucleus-electron Schiff moment generically gives the most important contribution to the electric dipole moments of atoms and molecules with…

High Energy Physics - Phenomenology · Physics 2009-10-28 Scott Thomas

This paper reviews the calculation of nuclear Schiff moments, which one must know in order to interpret experiments that search for time-reversal-violating electric dipole moments in certain atoms and molecules. After briefly reviewing the…

Nuclear Theory · Physics 2025-01-07 Jonathan Engel

The nuclear Schiff moment creates a mechanism of transfer of the violation of parity and time-reversal invariance by weak interaction in nuclei into the atomic electric dipole moment. We point out an additional contribution to the Schiff…

Nuclear Theory · Physics 2015-06-11 Naftali Auerbach , Vladimir Zelevinsky

The Schiff theorem is revisited in this work and the residual $P$- and $T$-odd electron--nucleus interaction, after the shielding takes effect, is completely specified. An application is made to the electric dipole moments of hydrogen-like…

Parity and time invariance violating (P,T-odd) nuclear forces produce P,T-odd nuclear moments. In turn, these moments can induce electric dipole moments (EDMs) in atoms through the mixing of electron wavefunctions of opposite parity. The…

Nuclear Theory · Physics 2008-11-26 V. V. Flambaum , J. S. M. Ginges

The electric dipole moments (EDMs) of diamagnetic atoms are expected to be sensitive to charge-parity violation particularly in nuclei through the nuclear Schiff moment. I explicitly demonstrate that the well-known form of the Schiff moment…

Nuclear Theory · Physics 2021-03-10 Kota Yanase

We examine the time-reversal-violating nuclear ``Schiff moment'' that induces electric dipole moments in atoms. After presenting a self-contained derivation of the form of the Schiff operator, we show that the distribution of Schiff…

Nuclear Theory · Physics 2014-11-18 J. Engel , J. L. Friar , A. C. Hayes

We carefully rederive the Schiff theorem and prove that the usual expression of the Schiff moment operator is correct and should be applied for calculations of atomic electric dipole moments. The recently discussed corrections to the…

Nuclear Theory · Physics 2008-01-09 R. A. Sen'kov , N. Auerbach , V. V. Flambaum , V. G. Zelevinsky

This is a resource paper concerning enhancement of observable time-reversal breaking effects by nuclear structure, aimed at AMO experimentalists. It's intended to support a white paper by providing some orientation on what can be said about…

Nuclear Experiment · Physics 2024-08-06 J. A. Behr

Nuclear forces violating parity and time reversal invariance (${\cal P},{\cal T}$-odd) produce ${\cal P},{\cal T}$-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment can induce the electric dipole moment in…

Nuclear Theory · Physics 2008-11-26 N. Auerbach , V. F. Dmitriev , V. V. Flambaum , A. Lisetskiy , R. A. Sen'kov , V. G. Zelevinsky

We present a comprehensive mean-field calculation of the Schiff moment of the nucleus 225Ra, the quantity which determines the static electric dipole moment of the corresponding atom if time-reversal (T) invariance is violated in the…

Nuclear Theory · Physics 2009-11-11 J. Dobaczewski , J. Engel

Stimulated by recent suggestion of Cosmic Axion Spin Precession Experiment with Eu contained compound we develop a new method for accurate calculation of Schiff moments of even-odd deformed nuclei. The method is essentially based on…

Nuclear Theory · Physics 2023-07-11 Oleg P. Sushkov

We calculate the Schiff moment of the nucleus 199Hg, created by pi-N-N vertices that are odd under parity (P) and time-reversal (T). Our approach, formulated in diagrammatic perturbation theory with important core-polarization diagrams…

Nuclear Theory · Physics 2015-06-26 J. H. de Jesus , J. Engel

The atomic electric dipole moment (EDM) currently searched by a number of experimental groups requires that both parity and time-reversal invariance be violated. According to current theoretical understanding, the EDM is induced by the…

Nuclear Theory · Physics 2008-11-26 Vladimir Zelevinsky , Alexander Volya , Naftali Auerbach

We calculated the contribution of internal nucleon electric dipole moments to the Schiff moment of $^{199}$Hg. The contribution of the proton electric dipole moment was obtained via core polarization effects that were treated in the…

Nuclear Theory · Physics 2008-11-26 V. F. Dmitriev , R. A. Sen'kov

Nuclear forces violating parity and time reversal invariance P,T-odd produce P,T-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment can induce the electric dipole moment (EDM) in the atom. The contribution to…

Nuclear Theory · Physics 2007-05-23 A. F. Lisetskiy , V. V. Flambaum , V. G. Zelevinsky

We use the Skyrme-Hartree-Fock method, allowing all symmetries to be broken, to calculate the time-reversal-violating nuclear Schiff moment (which induces atomic electric dipole moments) in the octupole-deformed nucleus 225Ra. Our…

Nuclear Theory · Physics 2009-11-10 J. Engel , M. Bender , J. Dobaczewski , J. H. de Jesus , P. Olbratowski

Schiff moments were calculated for a set of nuclei with full account of core polarization effects. A finite range P and T violating weak nucleon-nucleon interaction has been used in the calculations. While in the absence of core…

Nuclear Theory · Physics 2009-11-10 V. F. Dmitriev , R. A. Sen'kov , N. Auerbach

According to the Schiff theorem the nuclear electric dipole moment (EDM) is screened in neutral atoms. In ions this screening is incomplete. We extend a derivation of the Schiff theorem to ions and molecules. The finite nuclear size effects…

Atomic Physics · Physics 2015-06-03 V. V. Flambaum , A. Kozlov

Parity and time invariance violating (${\cal P},{\cal T}$-odd) nuclear forces produce ${\cal P},{\cal T}$-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment can induce electric dipole moments (EDMs) in atoms.…

Nuclear Theory · Physics 2009-08-18 V. V. Flambaum , V. G. Zelevinsky
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