A search for the self-consistent solutions for the chiral rotational bands in the isotones, Cs, La, Pr and Pm is performed within the Skyrme-Hartree-Fock cranking approach using SKM and SLy4 parametrizations. The dependence of the solutions on the time-odd contributions in the energy functional is studied. From among the considered four isotones, self-consistent chiral solutions are obtained only in La. The microscopic calculations are compared with the La experimental data and with results of a classical model that contains all the mechanisms underlying the chirality of the collective rotational motion. Strong similarities between the HF and classical model results are found. The suggestion formulated earlier by the authors that the chiral rotation cannot exist below a certain critical frequency is further illustrated and discussed, together with the microscopic origin of a transition from the planar to chiral rotation in nuclei. We also formulate the separability rule by which the Tilted-Axis-Cranking solutions can be inferred from three independent Principal-Axis-Cranking solutions corresponding to three different axes of rotation.

**P. Olbratowski,
J. Dobaczewski,
J. Dudek**

- Introduction
- Hartree-Fock Tilted-Axis-Cranking calculations
- Results
- Experiment and previous calculations
- Details of the calculations
- Energy minima in the isotones
- Properties of the valence nucleons and of the core
- Classical model
- Planar solutions
- Chiral solutions
- Separability of the TAC rotation

- Discussion
- Summary
- Rotational properties of single-particle states in a -symmetric potential
- Bibliography
- About this document ...