LEVEL DENSITY AND FINITE-TEMPERATURE SPECIFIC HEAT OF NUCLEUS 104Pd UNDER MICROSCOPIC IBM

doi:10.1088/1009-1963/10/2/306

Abstract

Abstract By using the microscopic sdgIBM-F_max 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.

Keywords: spectrum level density finite-temperature specific heat finite-temperature phase transition ¹⁰⁴Pd

Received: 16 March 2000
Revised: 19 July 2000
Accepted manuscript online:

PACS:	27.60.+j	(90 ≤ A ≤ 149)
	21.60.Ev	(Collective models)
	21.60.Fw	(Models based on group theory)
	21.65.+f
	21.10.Pc	(Single-particle levels and strength functions)
	21.10.Ma	(Level density)
	23.20.-g	(Electromagnetic transitions)
	24.60.-k	(Statistical theory and fluctuations)

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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LEVEL DENSITY AND FINITE-TEMPERATURE SPECIFIC HEAT OF NUCLEUS 104Pd UNDER MICROSCOPIC IBM

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LEVEL DENSITY AND FINITE-TEMPERATURE SPECIFIC HEAT OF NUCLEUS ¹⁰⁴Pd UNDER MICROSCOPIC IBM