Microscopic study of octupole-deformations in even-even 226-230Th isotopes

Study of octupole correlations in the actinides has attracted interest because of the predictions that octupole deformation would be present in the Z ∼ 88 and N ∼134 region. These predictions have been explored through a series of experimental studies, which have centred on energy spectra and transition properties. In the present work, the octupole-octupole interaction is incorporated to the pairing plus quadrupole-quadrupole model. The microscopic Cranked Hartree Bogoliubov framework (CHB) is employed with pairing plus quadrupole-quadrupole plus octupole-octupole interaction to study the non-axial nature of 226-230Th.