Microscopic Description of Heavy Deformed Nuclei

Abstract

Rotational bands and B(E2) electromagnetic transition strengths are described in five even-and odd-mass Dy isotopes using the pseudo-SU(3) model. The Hamiltonian includes spherical Nilsson single-particle energies, the quadrupole-quadrupole and pairing interactions, as well as rotor terms which are diagonal in the SU(3) basis. As expected, the use of realistic single-particle energies plays a key role in a description of oddmass nuclei. The interactions are microscopic and closely related to those known from other studies to be the most relevant for a description of the low-energy spectra. In the even-even nuclei the calculated B(E2) transition strengths are in good agreement with experiment. In the odd-mass nuclei the model is successful in a description of normal parity bands, including intra-and interband B(E2) transition strengths.