Isobaric incompressibility of the isospin asymmetric nuclear matter

2009/07/31 by D. N. Basu, P. Roy Chowdhury, C. Samanta · 1 citation
Physics and Astronomy · #nucl-th #nucl-ex

paper · pdf · doi:10.1103/physrevc.80.057304

published as Phys.Rev.C80:057304,2009. · 4 pages including 1 table and 1 figure

arxiv created 2009/11/09 · arxiv updated 2009/12/01

Abstract

The isospin dependence of the saturation properties of asymmetric nuclear matter, particularly the incompressibility K_∞ (X) = K_∞ + K_τX² + O(X⁴) at saturation density is systematically studied using density dependent M3Y interaction. The K_τ characterizes the isospin dependence of the incompressibility at saturation density ρ₀. The approximate expression K_asy ≈ K_sym-6L is often used for K_τ where L and K_sym represent, respectively, the slope and curvature parameters of the symmetry energy at ρ₀. It can be expressed accurately as K_τ=K_sym-6L-(Q₀)/(K_∞)L where Q₀ is the third-order derivative parameter of symmetric nuclear matter at ρ₀. The results of this addendum to Phys. Rev. C 80, 011305(R) (2009) indicate that the Q₀ contribution to K_τ is not insignificant.

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