COLLECTIVE T-ODD AND P-ODD ELECTROMAGNETIC MOMENTS IN NUCLEI WITH OCTUPOLE DEFORMATIONS

Parity and time invariance violating forces produce collective P- and T-odd moments in nuclei with static octupole deformation. Collective S chiff moment, electric octupole and dipole, and also magnetic quadrupo le appear due to the mixing of rotational levels of opposite parity an d can exceed single-particle moments by more than a factor of 100. Thi s enhancement is due to two factors, the collective nature of the intr insic moments an the small energy separation between members of parity doublets. The above moments induce T- and P-odd effects in atoms and molecules. Experiments with such systems may improve substantially the limits on time reversal violation.