scholarly journals Symmetrie and Asymmetrie Nuclear Matter in the Thomas-Fermi Model at Finite Temperatures

1999 ◽  
Vol 54 (1) ◽  
pp. 83-90 ◽  
Author(s):  
K. Strobel ◽  
F. Weber ◽  
M. K. Weigel
Keyword(s):  
Nuclear Matter ◽  
Gas Phase ◽  
Nuclear Physics ◽  
Cold Neutron ◽  
Critical Density ◽  
Nucleon Nucleon ◽  
Neutron Star Matter ◽  
Fermi Model ◽  
Thomas Fermi ◽  
Nucleon Nucleon Interaction

Abstract The properties of warm symmetric and asymmetric nuclear matter are investigated in the frame of the Thomas-Fermi approximation using a recent modern parameterization of the effective nucleon-nucleon interaction of Myers and Świątecki. Special attention is paid to the liquid-gas phase transition, which is of special interest in modern nuclear physics. We have determined the critical temperature, critical density and the so-called flash temperature. Furthermore, the equation of state for cold neutron star matter is calculated.

scholarly journals Properties and Synthesis of Heavy Nuclei and Properties of Neutron Star Matter

1974 ◽  
Vol 53 ◽  
pp. 67-75
Author(s):  
J. Robert Buchler
Keyword(s):  
Neutron Star ◽  
Nuclear Matter ◽  
Superheavy Nuclei ◽  
Heavy Nuclei ◽  
Neutron Star Matter ◽  
Fermi Model ◽  
Bulk Properties ◽  
Properties Of Nuclei ◽  
Thomas Fermi

The nuclear Thomas-Fermi model which is based on nuclear matter calculations has been successfully applied to the study of the bulk properties of nuclei. It is ideally suited for extrapolation into the region of very neutron-rich and of superheavy nuclei. It is therefore a valuable approach for r-process calculations as well as for the study of neutron star matter at subnuclear densities.

scholarly journals Neutron Star Properties in the Thomas-Fermi Model

1997 ◽  
Vol 06 (04) ◽  
pp. 669-691 ◽  
Author(s):  
K. Strobel ◽  
F. Weber ◽  
Ch. Schaab ◽  
M. K. Weigel
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Optical Potential ◽  
Nucleon Nucleon ◽  
Neutron Star Matter ◽  
Fermi Model ◽  
Cooling Behavior ◽  
Nucleon Nucleon Interaction ◽  
Finite Nuclei ◽  
The Impact

The modern nucleon-nucleon interaction of Myers and Swiatecki, adjusted to the properties of finite nuclei, the parameters of the mass formula, and the behavior of the optical potential is used to calculate the properties of β-equilibrated neutron star matter, and to study the impact of this equation of state on the properties of (rapidly rotating) neutron stars and their cooling behavior. The results are in excellent agreement with the outcome of calculations performed for a broad collection of sophisticated nonrelativistic as well as relativistic models for the equation of state.

EQUATION OF STATE OF ASYMMETRIC NUCLEAR MATTER WITH GOGNY AND COULOMB INTERACTIONS

1990 ◽  
Vol 05 (14) ◽  
pp. 1071-1080 ◽  
Author(s):  
S. W. HUANG ◽  
M. Z. FU ◽  
S. S. WU ◽  
S. D. YANG
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Coulomb Interaction ◽  
Chemical Potential ◽  
Compression Modulus ◽  
Nucleon Nucleon ◽  
Effective Density ◽  
Coulomb Interactions ◽  
Asymmetric Nuclear Matter ◽  
Nucleon Nucleon Interaction

The equation of state of the asymmetric nuclear matter is calculated with the Gogny D1 effective density-dependent nucleon-nucleon interaction and the Coulomb interaction in the framework of the finite-temperature HF method with the rearrangement term. The dependence of the thermodynamical properties such as the critical temperature of the liquid-gas phase transition, the chemical potential, the compression modulus and the entropy on the Coulomb interaction in nuclear matter is treated by using a shielded two-body Coulomb potential and this method has been found to be a reasonable and effective approach.

DENSITY-DEPENDENT CLUSTER MODEL OF α DECAY

2005 ◽  
Vol 19 (15n17) ◽  
pp. 2365-2368 ◽  
Author(s):  
CHANG XU ◽  
ZHONGZHOU REN
Keyword(s):  
Nuclear Physics ◽  
Cluster Model ◽  
Daughter Nucleus ◽  
Nucleon Nucleon ◽  
Nucleon Interaction ◽  
Α Decay ◽  
Density Dependent ◽  
Density Distributions ◽  
Nucleon Nucleon Interaction ◽  
Double Folding

A new cluster model of α decay is proposed where the effective potential between α-cluster and daughter nucleus is obtained from the double folding integral of the renormalized M3Y nucleon-nucleon interaction and of the density distributions of α particle and daughter nucleus. Without introducing any extra adjustment on the potential, the new model (named as the density-dependent cluster model) can successfully reproduce the experimental half-lives of α decay within a factor of 3. The model also works well for new superheavy elements which are the current interests of nuclear physics and chemistry.

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