Open AccessAnalysis of shape evolution for Pt isotopes with relativistic mean field theory
Author(s) -
Gang Wang,
Xiang-Zheng Fang,
Jian-You Guo
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.102101
Subject(s) - physics , circular symmetry , deformation (meteorology) , isotope , mean field theory , symmetry (geometry) , spherical mean , shape analysis (program analysis) , atomic physics , classical mechanics , condensed matter physics , geometry , quantum mechanics , mathematics , static analysis , mathematical analysis , meteorology , computer science , programming language
The relativistic mean field theory is used to investigate the shape evolution of Pt isotopes. The calculated binding energy and deformation parameter 2 are consistent with those obtained in experiment. The potential energy surfaces and the single particle levels show the shape evolution for Pt isotopes. From N=88 to N=126, the shapes for Pt nuclei evolve from spherical shapes to X(5), and then to shapes of stable quadruple deformation, finally back to the spherical shapes. In detail, 166-172Pt are spherical. 174Pt and 192-196Pt possess the X(5) symmetry. 176-190Pt are deformed nuclei. 204Pt holds spherical shape. These results in agreement with the experimental observations.