TIME INVARIANCE VIOLATING NUCLEAR ELECTRIC OCTUPOLE MOMENTS

The existence of a nuclear electric octupole moment (EOM) requires bot h parity and time invariance violation. The EOM's of odd Z nuclei that are induced by a particular T-and P-odd interaction are calculated. W e compare such octupole moments with the collective EOM's that can occ ur in nuclei having a static octupole deformation. A nuclear EOM can i nduce a parity-and time-invariance-violating atomic electric dipole mo ment, and the magnitude of this effect is calculated. The contribution of a nuclear EOM to such a dipole moment is found, in most cases, to be smaller than that of other mechanisms of atomic electric dipole mom ent production.