LEVEL DENSITY AND FINITE-TEMPERATURE SPECIFIC HEAT OF NUCLEUS 104Pd UNDER MICROSCOPIC IBM
Shi Zhu-yi (石筑一)a, Liu Yong (刘庸)b, Sang Jian-ping (桑建平)c
a Department of Physics, Guizhou Institute for Nationalities, Guiyang 550025, China; b Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China; c Department of Physics, Wuhan University, Wuhan 430072, China
Abstract By using the microscopic sdgIBM-Fmax approach, procedure of canonical ensemble average and saddle point approximation, thermodynamics of nucleus is established under microscopic IBM. Calculations of spectrum, level density and finite-temperature specific heat for the nucleus 104Pd are carried out. The calculated values are coincident with the experimental data reported recently. The results predict that the shape phase transition in ground state band appears at about T≈0.230MeV and the phase transition of thermal excitation mode takes place at T≈0.630MeV for nucleus 104Pd.
Received: 16 March 2000
Revised: 19 July 2000
Accepted manuscript online:
Fund: Project supported by the Natural Science Foundation of Hubei Province, China (Grant No. 98J122).
Cite this article:
Shi Zhu-yi (石筑一), Liu Yong (刘庸), Sang Jian-ping (桑建平) LEVEL DENSITY AND FINITE-TEMPERATURE SPECIFIC HEAT OF NUCLEUS 104Pd UNDER MICROSCOPIC IBM 2001 Chinese Physics 10 117
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