Dipole resonances and the nuclear Schiff moment
arXiv:1208.0324 · doi:10.1103/PhysRevC.86.045501
Abstract
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 moment generated by the mixing of single-particle states through the low-lying nuclear dipole resonances. An estimate shows that this contribution is by order of magnitude comparable to single-particle contributions and can be enhanced if the low-lying resonance has collective nature.
11 pages, no figures
References in corpus (6)
- Exotic modes of excitation in atomic nuclei far from stability
- Improved limit on the permanent electric dipole moment of 199Hg
- Low-energy isovector and isoscalar dipole response in neutron-rich nuclei
- Schiff Theorem Revisited
- Nuclear Schiff moment and soft vibrational modes
- Nuclear Structure and the Search for Collective Enhancement of P,T-Violation