Nuclear Time-Reversal Violation and the Schiff Moment of {sup 225}Ra
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
We present a comprehensive mean-field calculation of the Schiff moment of the nucleus {sup 225}Ra, the quantity that determines the static electric-dipole moment of the corresponding atom if time-reversal (T) invariance is violated in the nucleus. The calculation breaks all possible intrinsic symmetries of the nuclear mean field and includes, in particular, both exchange and direct terms from the full finite-range T-violating nucleon-nucleon interaction, and the effects of short-range correlations. The resulting Schiff moment, which depends on three unknown T-violating pion-nucleon coupling constants, is much larger than in {sup 199}Hg, the isotope with the best current experimental limit on its atomic electric-dipole moment.
- OSTI ID:
- 20696379
- Journal Information:
- Physical Review Letters, Vol. 94, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.94.232502; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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