Structure of the low-lying positive and negative parity states in even-even 144-154Nd isotopes

被引：0
|
作者：
Qasim, Hussein N. [1 ]
Al-Khudair, Falih H. [1 ]
机构：
[1] Univ Basrah, Coll Educ Pure Sci, Dept Phys, Basrah, Iraq
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2019年 / 28卷 / 12期
关键词：
Nuclear structure; energy levels; transitions; interacting boson model; A=144-154; Nd-isotopes; INTERACTING BOSON MODEL; COLLECTIVE NUCLEAR-STATES; SHAPE-PHASE-TRANSITIONS;
D O I：
10.1142/S0218301319501076
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The low-lying positive and negative parity states of even-even Nd144-154 isotopes are studied using the interacting boson model (IBM). The negative parity states are involved within the IBM model by adding a single angular momentum (L = 3) boson with intrinsic negative parity f-boson to s and d-bosons model space. For these nuclei, the potential energy surfaces V (beta, gamma), transition probability B(E1), B(E2) and B(E3) are calculated. Phase transition from the U(5) limit to the SU(3) limit is observed in the chain and the critical point has been determined for Nd-150 isotope. It is found that the calculated positive and negative parity energy spectra of Nd-isotopes agree well with the experimental data.
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页数：15
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