Chin. Phys. Lett.  2004, Vol. 21 Issue (2): 258-261    DOI:
Original Articles |
Finite-Temperature Equation of State with Three-Body Force Correlations
LI Zeng-Hua;ZUO Wei;LU Guang-Cheng;YONG Gao-Chan
Institute of Modern Physics, Chinese Academy of Sciences, PO Box 31, Lanzhou 730000
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LI Zeng-Hua, ZUO Wei, LU Guang-Cheng et al  2004 Chin. Phys. Lett. 21 258-261
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Abstract The equation of state of asymmetric nuclear matter at finite temperature is studied in the framework of the Brueckner-Hartree-Fock approximation which is extended to include three-body force correlations. Due to the additional repulsion produced by three-body force contribution, the proton or neutron potential energy and effective mass are correspondingly enhanced. The symmetry energy gradually becomes more sensitive to the temperature with the increasing density compared with the result that only includes the two hole-line contribution. The asymmetry parameter dependence of symmetry energy is also indicated. It is shown that there is the same linear relation between symmetry energy and β2 as the zero temperature case with β being the asymmetry parameter.
Keywords: 05.70.Ce      05.70.-a     
Published: 01 February 2004
PACS:  05.70.Ce (Thermodynamic functions and equations of state)  
  05.70.-a (Thermodynamics)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I2/0258
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