Particle number scale invariant feature of the states around the critical point of the first order nuclear shape phase transition  

作　　者：ZHANG Yu HOU ZhanFeng LIU YuXin 

机构地区：[1]Department of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China [2]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2009年第10期1579-1585,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos.10425521 and 10675007);the Major State Basic Research Development Program (Grant No.G2007CB815000)

摘　　要：We study systematically the evolutive behaviors of some energy ratios,E2 transition rate ratios and isomer shift in the nuclear shape phase transitions.We find that the quantities sensitive to the phase transition and independent of free parameter(s) are approximately particle number N scale invariant around the critical point of the first order phase transition,similar to that in the second order phase transition.We study systematically the evolutive behaviors of some energy ratios, E2 transition rate ratios and isomer shift in the nuclear shape phase transitions. We find that the quantities sensitive to the phase transition and independent of free parameter(s) are approximately particle number N scale invariant around the critical point of the first order phase transition, similar to that in the second order phase transition.

关 键 词：NUCLEAR shape phase transition critical point particle number SCALING behavior INTERACTING BOSON model 

分 类 号：O571[理学—粒子物理与原子核物理]