scholarly journals Softness of Sn isotopes in relativistic semiclassical approximation

2015 ◽  
Vol 30 (20) ◽  
pp. 1550097 ◽  
Author(s):  
S. K. Biswal ◽  
S. K. Singh ◽  
S. K. Patra
Keyword(s):  
Nuclear Matter ◽  
Semiclassical Approximation ◽  
Excitation Energies ◽  
Thomas Fermi ◽  
Giant Monopole Resonance

Within the framework of relativistic Thomas–Fermi (RTF) and relativistic extended Thomas–Fermi (RETF) approximations, we calculate the giant monopole resonance (GMR) excitation energies for Sn and related nuclei. A large number of nonlinear relativistic force parameters are used in these calculations. We find a parameter set is capable to reproduce the experimental monopole energy of Sn isotopes, when its nuclear matter compressibility lies within 210–230 MeV, however, it fails to reproduce the GMR energy of other nuclei. That means, simultaneously a parameter set cannot reproduce the GMR values of Sn and other nuclei.

Nuclear matter incompressibility coefficient and giant monopole resonance

1994 ◽  
Vol 569 (1-2) ◽  
pp. 303-312 ◽  
Author(s):  
S. Shlomo ◽  
D.H. Youngblood
Keyword(s):  
Nuclear Matter ◽  
Giant Monopole Resonance

Soft-Core Model in Nuclear Matter Calculations

1969 ◽  
Vol 24 (7) ◽  
pp. 1037-1039
Author(s):  
R Kar ◽  
M Roy
Keyword(s):  
Binding Energy ◽  
Nuclear Matter ◽  
Soft Core ◽  
Core Model ◽  
Equilibrium Density ◽  
Core Potential ◽  
Thomas Fermi ◽  
Soft Core Potential

Abstract Using a Thomas-Fermi method developed by KUMAR, LE COUTEUR and ROY 1 , it is shown here that the two-body soft-core potential suggested by KÖHLER and WAGMARE 2 does not give rise to correct binding energy and equilibrium density in nuclear matter calculations.

Incompressibility of Nuclear Matter from the Giant Monopole Resonance

1999 ◽  
Vol 82 (4) ◽  
pp. 691-694 ◽  
Author(s):  
D. H. Youngblood ◽  
H. L. Clark ◽  
Y.-W. Lui
Keyword(s):  
Nuclear Matter ◽  
Giant Monopole Resonance

ON GRAVITATIONALLY AND ELECTRODYNAMICALLY BOUND NUCLEAR MATTER CORES OF STELLAR DIMENSIONS

2011 ◽  
Vol 20 (10) ◽  
pp. 1995-2002 ◽  
Author(s):  
MICHAEL ROTONDO ◽  
REMO RUFFINI ◽  
SHE-SHENG XUE ◽  
VLADIMIR POPOV
Keyword(s):  
Electric Field ◽  
Nuclear Matter ◽  
Analytic Solutions ◽  
Physical Parameters ◽  
Heavy Nuclei ◽  
Neutral Atoms ◽  
Charge Neutrality ◽  
Thomas Fermi ◽  
Surface Energies ◽  
The Stability

In a unified treatment we extrapolate results for neutral atoms with heavy nuclei to nuclear matter cores of stellar dimensions with mass numbers A ≈ (m Planck /mn)3 ~ 1057. We give explicit analytic solutions for the relativistic Thomas–Fermi equation of Nn neutrons, Np protons and Ne electrons in beta equilibrium, fulfilling global charge neutrality, with Np = Ne. We give explicit expressions for the physical parameters including the Coulomb and the surface energies and we study as well the stability of such configurations. Analogous to heavy nuclei these macroscopic cores exhibit an overcritical electric field near their surface.

scholarly journals Relativistic Thomas-Fermi description of collective modes in droplets of nuclear matter

1996 ◽  
Vol 54 (5) ◽  
pp. 2525-2537 ◽  
Author(s):  
C. da Providência ◽  
L. Brito ◽  
J. da Providência ◽  
M. Nielsen ◽  
X. Viñas
Keyword(s):  
Nuclear Matter ◽  
Collective Modes ◽  
Thomas Fermi

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.

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