The N=90 transitional nuclei {sup 150}Nd and {sup 152}Sm revisited

Clark, R.M. ; Cromaz, M. ; M.A., Deleplanque ; Diamond, R.M. ; Fallon, P. ; Gorgen, A. ; Yee, I.Y. ; Macchiavelli, A.O. ; Stephens, F.S. ; Ward, D.

Lawrence Berkeley National Laboratory

关键词: Rotational States;    Samarium;    Excited States;    73 Nuclear Physics And Radiation Physics;    Nuclei;   

DOI  :  10.2172/816355
RP-ID  :  LBNL--52080
RP-ID  :  AC03-76SF00098
RP-ID  :  816355

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of this paper is to show that recent data on the ground-state band and excited states based on the 0{sub 2}{sup +} level in {sup 15}Nd and {sup 152}Sm, especially the measured B(E2) values, can be well described by including a {Delta}K = 0 coupling between rotational bands. This is contrary to recent statements in the literature. The experimental data are compared with models which have supported the widely differing interpretations of these transitional nuclei. These interpretations include describing excited states as rotational excitations of single-phonon states, the multiphonon ''phase coexistence'' picture, and the X(5) critical-point description.