Effects  of  Isospin  and  Momentum dependent  Interactions  on  Thermal   Properties  of  Nuclear  Matte

XU Jun; CHEN Lie-wen.; MA Hong-ru

doi:10.11804/NuclPhysRev.26.02.093

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Article Navigation > Nuclear Physics Review > 2009 > 26(2): 93-101

XU Jun, CHEN Lie-wen., MA Hong-ru. Effects of Isospin and Momentum dependent Interactions on Thermal Properties of Nuclear Matte[J]. Nuclear Physics Review, 2009, 26(2): 93-101. doi: 10.11804/NuclPhysRev.26.02.093

Citation:

XU Jun, CHEN Lie-wen., MA Hong-ru. Effects of Isospin and Momentum dependent Interactions on Thermal Properties of Nuclear Matte[J]. Nuclear Physics Review, 2009, 26(2): 93-101. doi: 10.11804/NuclPhysRev.26.02.093

Effects of Isospin and Momentum dependent Interactions on Thermal Properties of Nuclear Matte

doi: 10.11804/NuclPhysRev.26.02.093

1 Institute of Theoretical Physics, Shanghai Jiaotong University, Shanghai 200240, China; 2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy IonResearch Facility in Lanzhou, Lanzhou 730000, China; 3 Department of Physics, Texas A&M UniversityCommerce, Commerce, TX 75429, USA

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2009-06-20

Abstract

In this article， three models with different isospin and momentum dependence are used to study the thermodynamical properties of asymmetric nuclear matter. They are isospin and momentumdependent MDI interaction constrained by the isospin diffusion data of heavy ion collision， the momentumindependent MID interaction and the isoscalar momentumdependent eMDYI interaction. Temperature effects of symmetry energy，mechanical and chemical instability and liquidgas phase transition are analyzed. It is found that for MDI model the temperature effects of the symmetry energy attribute from both the kinetic and potential energy， while only potential part contributes to the decreasing of the symmetry energy for MID and eMDYI models. We also find that the mechanical instability， chemical instability and liquidgas phase transition are all sensitive to the isospin and momentum dependence and the density dependence of the symmetry energy.
- isospin,
- momentum dependence,
- symmetry energy,
- instability,
- liquidgas phase transition
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Isospin and Momentum dependent Interactions on Thermal Properties of Nuclear Matte

doi: 10.11804/NuclPhysRev.26.02.093

1 Institute of Theoretical Physics, Shanghai Jiaotong University, Shanghai 200240, China; 2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy IonResearch Facility in Lanzhou, Lanzhou 730000, China; 3 Department of Physics, Texas A&M UniversityCommerce, Commerce, TX 75429, USA

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2009-06-20

Key words:

Abstract: In this article， three models with different isospin and momentum dependence are used to study the thermodynamical properties of asymmetric nuclear matter. They are isospin and momentumdependent MDI interaction constrained by the isospin diffusion data of heavy ion collision， the momentumindependent MID interaction and the isoscalar momentumdependent eMDYI interaction. Temperature effects of symmetry energy，mechanical and chemical instability and liquidgas phase transition are analyzed. It is found that for MDI model the temperature effects of the symmetry energy attribute from both the kinetic and potential energy， while only potential part contributes to the decreasing of the symmetry energy for MID and eMDYI models. We also find that the mechanical instability， chemical instability and liquidgas phase transition are all sensitive to the isospin and momentum dependence and the density dependence of the symmetry energy.

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