An Isospin-Dependent Nuclear Equation of State

  • Within the framework of Hartree-Fock approximation an isospin-dependent nuclear equation of state is obtained by using the extended Skyrme effcehve interachon.The nuclear equation of state is analyzed at different relative neutron excesses. It is found that the binding energy increases with increment of the relative neutron excess,and the nuclear matter critical temperatUre, satUration density and the incompressbility at saturation decrease as a function of the relative neutron excess. It is indicated that the properties at satUration as a function of relative neutron excess sahsfy the parabolic law.
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  • [1] Zhang W L et al. Science In China 1999, A42(5):528–536 2 Kubo T et al. Nucl. Instrum. Methods In Phys. Res., 1992, B70:309–319 3 Deissel H et al. Nucl. Instrum. Methods In Phys. Res., 1992, B70:286–297 4 Mueller A C, Anne R Nail. Instrum. Methods In Phys. Res., 1991, B56/57:559–5635 Sherrill B M et al. Nucl. Instrum. Methods in Phys. Res., 1991, B56/57:1106–1110 6 Bertuled C A et al. Phys. Rep., 1993, 226(6):281–376 7 Zhukov M V et al. Phys. Rep., 1993, 231: 151–199 8 Tenihata I. Prog. Pat Nucl. Phys., 1995, 35:505–573 9 U B A, Ko C M, Baner W. Inte. J. Mod. Phys., 1998, E7(2): 147–229 10 Chen L W, Zhang X D, De L X. High Energy Phys. and Nucl. Phys. (in Chinese), 1996, 20(12): 1091–1096(陈列文,张晓东,葛凌霄.高能物理与核物理,1996,20(12):1091–1096)11 Kunde G J et al. Phys. Rev. Dett, 1996, 77(14): 2897–2900 12 Li B A, Ko C M, Ren Z Z. Phys. Rev. Lett, 1997, 78(9): 1644–164713 Li B A, Yeunello S J. Phys. Rev., 1995, C52(4):R1746–R174914 Chen L W et al. J. Phys., 1997, G23:211–218 15 Li B A et al. Phys. Rev. Lett, 1996, 76(24):4492–449516 Pak R et al. Phys. Rev. Lett, 1997, 78(6): 1022–1025 17 Pah R et al. Phys. Rev. Lett., 1997, 78(6):1026–1029 18 Chen L W, Zhang F S, Jin G M. Phys. Rev., 1998, C58(4):2283–2291 19 Zhang F S, De L X. High Energy Phys. and Nucl. Phys. (in Chineses), 1992, 16(7):666–669(张丰收,葛凌霄.高能物理与核物理, 1992,16(7):666–669)20 Zhang F S. Z. Phys., 1996, A356: 163–170 21 De L X, Zhuo Y L NOrenberg W. Nucl. Phys., 1986, A459(1):77–9222 Bombaci I, Lombndo U. Phys. Rev., 1992, C44(5): 1892–1900 23 Wiringa R B, Fibs V, Fabrocini A. Phys. Rev., 1988, C38(2): 1010–1037 24 Baron E, Cooperstein J, Kahana S. Phys. Rev. Lett., 1985, 55(1): 126–129 25 Lopez–Quelle M et al. Nucl. Phys., 1988, A483(3,4):479–492
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Zhang Fengshou and Chen Liewen. An Isospin-Dependent Nuclear Equation of State[J]. Chinese Physics C, 1999, 23(12): 1190-1196.
Zhang Fengshou and Chen Liewen. An Isospin-Dependent Nuclear Equation of State[J]. Chinese Physics C, 1999, 23(12): 1190-1196. shu
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Received: 1998-10-13
Revised: 1900-01-01
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An Isospin-Dependent Nuclear Equation of State

    Corresponding author: Zhang Fengshou,
  • Center of Theoretical Nuclear Physics, National toboralory of Heavy lon Accelerator,Lanzhou 7300002 Institute of Modern Physics, The Chinese Academy of sciences, Lanzhou 7300003 CCAST World Laboratory, Beijing 100080

Abstract: Within the framework of Hartree-Fock approximation an isospin-dependent nuclear equation of state is obtained by using the extended Skyrme effcehve interachon.The nuclear equation of state is analyzed at different relative neutron excesses. It is found that the binding energy increases with increment of the relative neutron excess,and the nuclear matter critical temperatUre, satUration density and the incompressbility at saturation decrease as a function of the relative neutron excess. It is indicated that the properties at satUration as a function of relative neutron excess sahsfy the parabolic law.

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