Open AccessA probable explanation on nuclear shape phase transition SU(3)–U(5)–SU(3) of the yrast-band structure in 182Os nucleus by potential energy surface
Author(s) -
Tong Hong,
Yang Ya-Bi,
Shi Zhu-yi,
Weiyi Hong
Publication year - 2013
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.62.132101
Subject(s) - yrast , physics , nucleus , angular momentum , phase transition , potential energy surface , degeneracy (biology) , atomic physics , spin (aerodynamics) , bohr model , nuclear structure , interacting boson model , condensed matter physics , boson , quantum mechanics , ab initio , bioinformatics , biology , excited state , microbiology and biotechnology , thermodynamics
Nuclear structure phase transitions SU(3)–U(5)–SU(3) of the yrast-band structure in 182Os nucleus are successfully described, based on the association of microscopic interacting Boson model (IBM) with the γ-ray energy on spin curves (E-GOS). It is very abstract because of lack of concrete facts. A probable explanation of these one after the other phase transitions are geometrically given, with a functional relation of microscopic parameters in microscopic sdIBM-Fmax approach and potential energy surface in Bohr collective model. It is expounded that at high angular momentum, in a well-deformed nucleus, a probable way to the γ-vibrational energy can become lower than the rotational energy bcause there are a number of degeneracy states formed by quantum effect between the highter and lower excition states so as to achieve SU(3)–U(5) structue phase transition.