scholarly journals Quartic isospin asymmetry energy of nuclear matter from chiral pion-nucleon dynamics

2015 ◽  
Vol 91 (6) ◽  
Author(s):  
N. Kaiser
Keyword(s):  
Nuclear Matter ◽  
Isospin Asymmetry ◽  
Pion Nucleon ◽  
Asymmetry Energy

S-wave pion-nucleon interaction and PCAC in nuclear matter

1980 ◽  
Vol 92 (3-4) ◽  
pp. 261-264 ◽  
Author(s):  
E.Kh. Akhmedov ◽  
Yu.V. Gaponov ◽  
I.N. Mishustin
Keyword(s):  
Nuclear Matter ◽  
Nucleon Interaction ◽  
S Wave ◽  
Pion Nucleon

Equation of state of asymmetric nuclear matter: a VMC study

Open Physics ◽  
2010 ◽  
Vol 8 (4) ◽  
Author(s):  
Kaan Manisa ◽  
Ülfet Atav ◽  
Sibel Sarıaydın
Keyword(s):  
Nuclear Matter ◽  
Many Body ◽  
Isospin Asymmetry ◽  
Asymmetric Nuclear Matter ◽  
Methods And Techniques ◽  
Microscopic Interactions ◽  
Many Body Interactions ◽  
Asymmetry Parameters ◽  
Kinetic And Potential Energies ◽  
Good Agreement

AbstractA Variational Monte Carlo (VMC) method is employed to investigate the properties of symmetric and asymmetric nuclear matter. The realistic Urbana V 14 twonucleon interaction potential of Lagaris and Pandharipande was used to describe the microscopic interactions. Also, many body interactions are included as a density dependent term in the potential. Total kinetic and potential energies per particle are calculated for asymmetric nuclear matter by VMC method at various densities and isospin asymmetry parameters. The results are compared with data found in literature, and it was observed that the results obtained in this study reasonably agree with the results found in the literature. Also, the symmetry energy and incompressibility factor of the nuclear matter were obtained. The results obtained are in good agreement with those obtained by various authors with different methods and techniques.

Modeling of a microscopic optical pion-nucleon potential at energies in the (3, 3)-resonance region and nuclear-matter effect on the pion-nucleon amplitude

2014 ◽  
Vol 77 (1) ◽  
pp. 100-109 ◽  
Author(s):  
V. K. Lukyanov ◽  
E. V. Zemlyanaya ◽  
K. V. Lukyanov ◽  
E. I. Zhabitskaya ◽  
M. V. Zhabitsky
Keyword(s):  
Nuclear Matter ◽  
Resonance Region ◽  
Nucleon Potential ◽  
Pion Nucleon ◽  
Matter Effect

Effective pion-nucleon interaction in nuclear matter

1976 ◽  
Vol 14 (3) ◽  
pp. 1090-1101 ◽  
Author(s):  
L. S. Celenza ◽  
L. C. Liu ◽  
W. Nutt ◽  
C. M. Shakin
Keyword(s):  
Nuclear Matter ◽  
Nucleon Interaction ◽  
Pion Nucleon

ISOSPIN DEPENDENCE OF THE SATURATION PROPERTIES OF ASYMMETRIC NUCLEAR MATTER IN NONRELATIVISTIC MEAN FIELD MODEL

2012 ◽  
Vol 21 (09) ◽  
pp. 1250079 ◽  
Author(s):  
S. CHAKRABORTY ◽  
B. SAHOO ◽  
S. SAHOO
Keyword(s):  
Nuclear Matter ◽  
Fourth Order ◽  
Symmetry Energy ◽  
Mean Field ◽  
Saturation Density ◽  
Order Effects ◽  
Mean Field Model ◽  
Isospin Asymmetry ◽  
Asymmetric Nuclear Matter ◽  
Isospin Dependence

A phenomenological momentum dependent interaction (MDI) is considered to describe the equation of state (EOS) for isospin asymmetric nuclear matter (ANM), where the density dependence of the nuclear symmetry is the basic input. In this interaction, the symmetry energy shows soft dependence of density. Within the nonrelativistic mean field approach we calculate the nuclear matter fourth-order symmetry energy E sym, 4 (ρ). Our result shows that the value of E sym, 4 (ρ) at normal nuclear matter density ρ0( = 0.161 fm -3) is less than 1 MeV conforming the empirical parabolic approximation to the EOS of ANM at ρ0. Then the higher-order effects of the isospin asymmetry on the saturation density ρ sat (β), binding energy per nucleon K sat (β) and isobaric incompressibility K sat (β) of ANM is being studied, where [Formula: see text] is the isospin asymmetry. We have found that the fourth-order isospin asymmetry β cannot be neglected, while calculating these quantities. Hence the second-order K sat , 2 parameter basically characterizes the isospin dependence of the incompressibility of ANM at saturation density.

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