Eur. Phys. J. A (2005) 25: 451-452
https://doi.org/10.1140/epjad/i2005-06-140-y

ENAM 2004

Systematics in the structure of low-lying, non-yrast band-head configurations of strongly deformed nuclei

¹ Department of Physics, University of Notre Dame, 46556, Notre Dame, IN, USA
² Bulgarian Academy of Science, Sofia, Bulgaria
³ Department of Physics, Louisiana State University, 70803, Baton Rouge, LA, USA

^* e-mail: gpopa@nd.edu

Received: 6 December 2004
Accepted: 1 March 2005
Published online: 30 June 2005

Abstract

A systematic application of the pseudo-SU(3) model for a sequence of rare earth nuclei demonstrates that an overarching symmetry can be used to predict the onset of deformation as manifested through low-lying collective bands. The results also show that it is possible to obtain a unified description of members of the yrast band and the K ^π = 2₁ ⁺ and K ^π = 0₂ ⁺ excited bands by using a classification scheme based on particle occupation numbers in the valence shells. The scheme utilizes an overarching Sp(4, R) symplectic framework. The nuclei that are considered belong to the F ₀ = 0 and F ₀ = 1 symplectic multiplets of the (50,82-82,126) shell.