TOWARD A NEW PARAMETERIZATION OF THE GOGNY FORCE: NEUTRON MATTER AND NUCLEAR BINDING ENERGIES

2006 ◽  
Vol 15 (02) ◽  
pp. 339-345 ◽  
Author(s):  
F. CHAPPERT ◽  
M. GIROD
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Variational Calculation ◽  
Binding Energies ◽  
Neutron Matter ◽  
Saturation Point ◽  
Nuclear Binding

A new parameterization of the effective Gogny interaction is investigated. It has the property of fitting the neutron matter Equation Of State (EOS) as predicted by a variational calculation. Its properties in nuclear matter (saturation point, compressibility, …) and in nuclei (binding energies) are presented.

RELATIVISTIC CORRECTIONS TO THE NUCLEAR AND NEUTRON MATTER ENERGY IN THE LOCV FRAMEWORK

2005 ◽  
Vol 14 (02) ◽  
pp. 297-314 ◽  
Author(s):  
S. ZARYOUNI ◽  
H. R. MOSHFEGH
Keyword(s):  
Equation Of State ◽  
Kinetic Energy ◽  
Nuclear Matter ◽  
Cluster Expansion ◽  
Binding Energies ◽  
Symmetric Nuclear Matter ◽  
Neutron Matter ◽  
Relativistic Corrections ◽  
Pure Neutron Matter ◽  
Matter Energy

We calculate the two-body relativistic boost interaction corrections as well as relativistic one-body and two-body kinetic energy corrections in cluster expansion of energy with AV18 and the new charge dependent Reid93 potentials within the lowest order constrained variational (LOCV) method. The equation of state of symmetric nuclear matter and pure neutron matter are calculated using the non-relativistic (H NR ), non-relativistic plus boost interaction corrections [Formula: see text] and [Formula: see text] plus kinetic energy corrections [Formula: see text] Hamiltonians. The relativistic boost interaction effects reduce the binding energies of symmetric nuclear matter for the AV18 interaction by ~3 MeV .

scholarly journals Variational calculation for the equation of state of nuclear matter at finite temperatures

2007 ◽  
Vol 791 (1-2) ◽  
pp. 232-250 ◽  
Author(s):  
H. Kanzawa ◽  
K. Oyamatsu ◽  
K. Sumiyoshi ◽  
M. Takano
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Variational Calculation

Variational Calculation for the Equation of State of Hot Asymmetric Nuclear Matter

2010 ◽  
Author(s):  
Hajime Togashi ◽  
Hiroaki Kanzawa ◽  
Masatoshi Takano ◽  
Isao Tanihara ◽  
Hooi Jin Ong ◽  
...  
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Variational Calculation ◽  
Asymmetric Nuclear Matter

Neutron star properties from optimised chiral nuclear interactions

2018 ◽  
Vol 35 ◽  
Author(s):  
D. Logoteta ◽  
I. Bombaci
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Nuclear Matter ◽  
Nuclear Interaction ◽  
Binding Energies ◽  
Leading Order ◽  
Nuclear Forces ◽  
Hartree Fock ◽  
First Case ◽  
Three Body

AbstractWe adopt two- and three-body nuclear forces derived at the next-to-next-to-leading-order in the framework of effective chiral perturbation theory to calculate the equation of state of β-stable neutron star matter using the Brueckner–Hartree–Fock many-body approach. We use the recent optimized chiral two-body nuclear interaction at next-to-next-to-leading-order derived by Ekström et al. and two different parametrizations of the three-body next-to-next-to-leading-order interaction: the first one is fixed to reproduce the saturation point of symmetric nuclear matter while the second one is fixed to reproduce the binding energies of light atomic nuclei. We show that in the second case the properties of nuclear matter are not well determined whereas in the first case various empirical nuclear matter properties around the saturation density are well reproduced. We finally calculate various neutron star properties and in particular the mass-radius and mass-central density relations. We find that the adopted interactions based on a fully microscopic framework, are able to provide an equation of state which is consistent with the present data of measured neutron star masses.

THREE NUCLEON CORRELATIONS IN NUCLEAR MEDIUM

2003 ◽  
Vol 18 (02n06) ◽  
pp. 317-321
Author(s):  
H. Q. SONG ◽  
M. BALDO ◽  
A. FIASCONARO ◽  
G. GIANSIRACUSA ◽  
U. LOMBARDO
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Nuclear Medium ◽  
Main Term ◽  
Saturation Point ◽  
Good Convergence ◽  
Body Forces ◽  
Three Body ◽  
Line Level

The equation of state(EOS) of nuclear matter is studied up to the three-hole-line level of approximation in the Behte-Brueckner-Goldstone expansion. The results indicate a good convergence of the theory. The fact that the resulting EOS does not reproduce the empirical saturation point suggests that the three-body forces are most likely the main term missing in the nuclear Hamiltonian.

Sign in / Sign up

Export Citation Format

Share Document