scholarly journals Effective Hadron Masses and Effective Interactions in Nuclear Matter

2004 ◽  
Vol 112 (5) ◽  
pp. 831-854 ◽  
Author(s):  
H. Kouno ◽  
Y. Horinouchi ◽  
K. Tuchitani
Keyword(s):  
Nuclear Matter ◽  
Effective Interactions ◽  
Hadron Masses

CHARGE DENSITY DIFFERENCES AND THE NUCLEAR INCOMPRESSIBILITY

1986 ◽  
Vol 01 (09) ◽  
pp. 509-515 ◽  
Author(s):  
J. BARTEL ◽  
G. WENES ◽  
M. WAROQUIER ◽  
J. RYCKEBUSCH
Keyword(s):  
Nuclear Matter ◽  
Charge Density ◽  
Level Density ◽  
Mean Field ◽  
Compression Modulus ◽  
Charge Density Distribution ◽  
Effective Interactions ◽  
Pairing Correlations ◽  
The Difference ◽  
Nuclear Incompressibility

The influence of the nuclear matter compression modulus K∞ on the difference in the charge density distribution of 208 Pb −206 Pb is investigated in a self-consistent mean field approach with a variety of density dependent effective interactions of the generalized Skyrme type. It is found that in addition to a dependence on the compressibility associated with a given Skyrme force the results also depend strongly on the pairing correlations which, through the level density, are influenced by the nuclear matter effective mass.

Effective interactions and elementary excitations in nuclear matter

1988 ◽  
Vol 477 (3) ◽  
pp. 365-398 ◽  
Author(s):  
D. Pines ◽  
K.F. Quader ◽  
J. Wambach
Keyword(s):  
Nuclear Matter ◽  
Elementary Excitations ◽  
Effective Interactions

scholarly journals The calculation of Binding Energy and Incompressibility, Pressure, and Velocity of Sound of Infinite Nuclear matter Using New One Boson Interaction.

2019 ◽  
Vol 1 ◽  
pp. 288-293
Author(s):  
M T Aper ◽  
F Gbaorun ◽  
J O Fiase
Keyword(s):  
Binding Energy ◽  
Nuclear Matter ◽  
Effective Interaction ◽  
Research Work ◽  
Nucleon Nucleon ◽  
Matrix Approach ◽  
Velocity Of Sound ◽  
Model Calculations ◽  
Effective Interactions

The use of effective nucleon – nucleon (N N) interactions for the determination of nuclear matter properties such as, binding energy per nucleon, incompressibility,K of infinite nuclear matter, pressure 0 and velocity of sound of nuclear matter has been a subject of great interest to nuclear physicists for many decades. The effective interaction usually involved in these calculations has been the Michigan three Yukawa (M3Y) effective interactions whose origin is from G- matrix approach. In this research work however, we have used a newly developed interaction known as new one boson (NOB) effective interaction to carry out similar calculations. This new interaction is based on the Lowest Order Constrained Variational (LOCV) technique. The interaction reproduces the saturation energy of spin and isospin infinite nuclear matter of approximately -16MeV at the normal nuclear matter saturation density consistent with the best available density-dependent interaction derived from the G-matrix approach. The results of the incompressibility obtained using the NOB interaction ranges from 304 to 309 MeV. These values are in good agreement with the values of incompressibility obtained for similar calculations using the M3Y – Reid effective interaction, in which values for K range from 304 to 310 MeV. The results of 0 pressure and velocity of sound of infinite nuclear matter obtained in the present calculations are also in excellent agreement with results of other workers. The results of our present calculations indicate that, the NOB interaction has passed the basic test for an effective interaction. The NOB may therefore be applied to other nuclear matter and optical model calculations to ascertain its reliability.

scholarly journals PAIRING PROPERTIES OF SYMMETRIC NUCLEAR MATTER IN RELATIVISTIC MEAN FIELD THEORY

2008 ◽  
Vol 17 (08) ◽  
pp. 1441-1452 ◽  
Author(s):  
J. LI ◽  
B. Y. SUN ◽  
J. MENG
Keyword(s):  
Field Theory ◽  
Nuclear Matter ◽  
Effective Interaction ◽  
Mean Field Theory ◽  
Mean Field ◽  
Symmetric Nuclear Matter ◽  
Effective Interactions ◽  
Relativistic Mean Field ◽  
Effective Factor ◽  
Pairing Correlations

The properties of pairing correlations in symmetric nuclear matter are studied in the relativistic mean field (RMF) theory with the effective interaction, PK1. Considering the well-known problem that the pairing gap at the Fermi surface calculated with RMF effective interactions is three times larger than that with the Gogny force, an effective factor in the particle–particle channel is introduced. For the RMF calculation with PK1, an effective factor of 0.76 gives a maximum pairing gap of 3.2 MeV at a Fermi momentum of 0.9 fm-1, which is consistent with the result with the Gogny force.

COLD NEUTRON AND NUCLEAR MATTER WITH EFFECTIVE AND REALISTIC INTERACTIONS

1996 ◽  
Vol 05 (02) ◽  
pp. 353-364 ◽  
Author(s):  
J. VENTURA ◽  
A. POLLS ◽  
X. VIÑAS ◽  
M. PI
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Asymmetry Parameter ◽  
Cold Neutron ◽  
Finite Range ◽  
Effective Interactions ◽  
Asymmetric Nuclear Matter ◽  
Hartree Fock ◽  
Range Type ◽  
Zero Range

A study of the equation of state (EOS) for cold asymmetric nuclear matter and beta-stable matter using effective interactions, of zero range (Skyrme type) and finite range type (D1-Gogny), is performed in the Hartree-Fock approach. The results are systematically compared with recent microscopic calculations. Two parametrizations of the energy of asymmetric nuclear matter in terms of the asymmetry parameter are tested in the case of effective interactions. While all forces agree rather well for nuclear matter, some discrepancies appear for neutron matter revealing the different spin-isospin contents of the interactions.

scholarly journals EFFECTIVE HADRON MASSES AND COUPLINGS IN NUCLEAR MATTER AND INCOMPRESSIBILITY

2001 ◽  
Vol 10 (03) ◽  
pp. 245-265 ◽  
Author(s):  
KUNITO TUCHITANI ◽  
HIROAKI KOUNO ◽  
AKIRA HASEGAWA ◽  
MASAHIRO NAKANO
Keyword(s):  
Nuclear Matter ◽  
Simple Relation ◽  
Normal Density ◽  
Effective Masses ◽  
Effective Lagrangian ◽  
Hadron Masses

The role of effective hadron masses and effective couplings in nuclear matter is studied using a generalized effective Lagrangian for σ-ω model. A simple relation among the effective masses, the effective couplings and the incompressibility K is derived. Using the relation, it is found that the effective repulsive and the effective attractive forces almost cancel each other out at the normal density. Inversely, if this cancellation is almost complete, K is 250~350 MeV.

scholarly journals A beyond-mean-field example with zero–range effective interactions in infinite nuclear matter

2012 ◽  
Vol 38 ◽  
pp. 06002
Author(s):  
K. Moghrabi ◽  
M. Grasso ◽  
X. Roca-Maza ◽  
G. Colò ◽  
N. Van Giai
Keyword(s):  
Nuclear Matter ◽  
Mean Field ◽  
Effective Interactions ◽  
Zero Range
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