Influence of Density-Dependent Coupling Constants on Symmetry Energy of Nuclear MatterJournal: International Journal of Applied and Natural Sciences (IJANS) (Vol.7, No. 1)
Publication Date: 2018-01-31
Authors : Xian-Mei Ye Hua-Ju Lee; Wei Chen;
Page : 7-16
Keywords : Nuclear Matter; Density-Dependent Coupling Constants; Symmetry Energy;
In the mean field approximation of nonlinear relativistic σ − ω − ρ model, we study the influence of the density-dependent coupling constants, between nucleons and mesons on the symmetry energy S (ρ ) of infinite nuclear B matter, in four different density-dependent formalism. We find greater Γ and L when Γ leads to greater K , c and ρ σ ,ω sym d are fixed and indicate larger S (ρ ) in high density region. In addition, the density dependence of Γ make S (ρ ) σ ,ω ,ρ B B smaller in high density region, and they make K and L more sensitive to the changing of parameters at different sym density.
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