Microscopic study of neutron-rich Dysprosium isotopes

Abstract

Microscopic studies in heavy nuclei are very scarce due to large valence spaces involved. This computational problem can be avoided by means of the use of symmetry based models. Ground-state, gamma and beta-bands, and their B(E2) transition strengths in 160-168Dy isotopes, are studied in the framework of the pseudo-SU(3) model which includes the preserving symmetry Q.Q term and the symmetry-breaking Nilsson and pairing terms, systematically parametrized. Additionally, three rotor-like terms are considered whose free parameters, fixed for all members of the chain are used to fine tune the moment of inertia of rotational bands and the band-head of gamma and beta-bands. The model succesfully describes in a systematic way rotational features in these nuclei and allows to extrapolate toward the midshell nucleus 170Dy. The results presented show that it is possible to study full chain of isotopes or isotones in the region with the present model.

References in corpus (15)

• Nuclear Ground-State Masses and Deformations
• The Shell Model as Unified View of Nuclear Structure
• Pseudo-spin as a Relativistic Symmetry
• The realistic collective nuclear Hamiltonian
• Spherical Shell Model description of rotational motion
• Full pf shell study of A = 47 and A = 49 nuclei
• Rare-Earth Nuclei: Radii, Isotope-Shifts and Deformation Properties in the Relativistic Mean Field Theory
• Quasi-SU(3) truncation scheme for even-even sd-shell nuclei
• Shell model description of normal parity bands in odd-mass heavy deformed nuclei
• Backbending in Dy isotopes within the Projected Shell Model
• Shell model Monte Carlo calculations for Dy-170
• Pseudo SU(3) shell model: Normal parity bands in odd-mass nuclei
• Inter-band B(E2) transition strengths in odd-mass heavy deformed nuclei
• Microscopic description of the scissors mode in odd-mass heavy deformed nuclei
• Excited bands in odd-mass rare-earth nuclei

Cited by in corpus (4)

• Electromagnetic properties in ${}^{160-170}$Dy nuclei: A microscopic description by the pseudo-SU(3) shell model
• Microscopic study of low-lying energy levels and electromagnetic properties in even-even ${}^{168-178}$Yb nuclei
• Interplay of quadrupole and octupole degrees of freedom in the Gd isotopes
• Theoretical study of normal deformed rotational bands of odd-mass ${}^{167,169,171}$Lu nuclei