Nuclear Schiff moment and soft vibrational modes

Vladimir Zelevinsky*, Alexander Volya, Naftali Auerbach

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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 Schiff moment. The enhancement of the Schiff moment by the combination of static quadrupole and octupole deformation was predicted earlier. Here we study a further idea of the possible enhancement in the absence of static deformation but in a nuclear system with soft collective vibrations of two types. Both analytical approximation and numerical solution of the simplified problem confirm the presence of the enhancement. We discuss related aspects of nuclear structure which should be studied beyond mean-field and random phase approximations.

Original languageEnglish
Article number014310
JournalPhysical Review C - Nuclear Physics
Issue number1
StatePublished - 17 Jul 2008


FundersFunder number
National Science Foundation
Directorate for Mathematical and Physical Sciences0555366


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