Eur. Phys. J. A (2017) 53: 73
https://doi.org/10.1140/epja/i2017-12264-y

Regular Article - Theoretical Physics

Electromagnetic properties in ^160-170Dy nuclei: A microscopic description by the pseudo- SU(3) shell model

¹ Facultad de Física, Universidad Veracruzana, CP 91000, Xalapa, Veracruz, Mexico
² Facultad de Ciencias, Universidad Nacional Autónoma de México, Apartado Postal 70-542, 04510, México D.F., Mexico
³ Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apdo. Postal 70-543, C.P. 04510, México D. F., Mexico

^* e-mail: cavargas@uv.mx

Received: 25 November 2016
Accepted: 27 March 2017
Published online: 21 April 2017

Abstract

The large collectivity observed in the rare-earth region of the nuclear landscape is well known. The microscopic studies are difficult to perform in this region due to the enormous size of the valence spaces, a problem that can be avoided by means of the use of symmetry-based models. Here we present calculations for electromagnetic properties of ^160-170Dy nuclei within the pseudo-SU(3) scheme. The model Hamiltonian includes the preserving symmetry term and the symmetry-breaking Nilsson and pairing terms, systematically parametrized for all members of the chain. The model is used to calculate B(E2) and B(M1) inter-band transition strengths between the ground state, and -bands. In addition, we present results for quadrupole moments and g factors in these rotational bands. The results show that the pseudo-SU(3) shell model is a powerful microscopic theory for a description of electromagnetic properties of states in the normal parity sector in heavy deformed nuclei.