Global Correlations for Low-Lying Collective 2+ States

40th Symposium on Nuclear Physics 2017

Qin, Z.Z.^1 ; Lei, Y.^2 ; Pittel, S.^3 ; Bijker, R.^4

School of Science, Southwest University of Science and Technology, Mianyang

621900, China^1

Key Laboratory of Neutron Physics, Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang

621900, China^2

Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark

DE

19716, United States^3

Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, México, D.F.

04510, Mexico^4

关键词: Collective phenomena;    Electromagnetic properties;    Global correlation;    Nuclear structure;    Nuclear systems;    Orthogonal transformations;    Quadrupole moments;    Similar models;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/876/1/012019/pdf
DOI  :  10.1088/1742-6596/876/1/012019

来源: IOP

【 摘 要 】

By using the triaxial rotor model and the anharmonic vibrator model with phonon mixing, we derive a global correlation between the quadrupole moments of the two lowest 2+states in collective nuclei that had previously been observed in experimental data across the periodic table. We then derive other electromagnetic properties for these two models of nuclear structure and compare them globally with experimental data. We find that both models are able to robustly describe the experimental data across the region of nuclei for which the models are applicable, including a large number that they have in common. We then show that there seems to exists a robust orthogonal transformation between these two models for realistic nuclear systems, suggesting that these two seemingly diverse descriptions of quadrupole collective phenomena seem to act in a similar model space and may therefore have a common origin.