Isobaric incompressibility of the isospin asymmetric nuclear matter

Details Isobaric incompressibility of the isospin asymmetric nuclear matter Isobaric incompressibility of the isospin asymmetric nuclear matter

2009-07-30

arxiv.org/abs/0907.5350v2

Phys.Rev.C80:057304,2009.

Physics

Nuclear Physics

Nuclear Theory

4 pages including 1 table and 1 figure

Scientific paper

10.1103/PhysRevC.80.057304

The isospin dependence of the saturation properties of asymmetric nuclear matter, particularly the incompressibility $K_\infty (X) = K_\infty + K_\tau X^2 + O(X^4)$ at saturation density is systematically studied using density dependent M3Y interaction. The $K_\tau$ characterizes the isospin dependence of the incompressibility at saturation density $\rho_0$. The approximate expression $K_{asy} \approx K_{sym}-6L$ is often used for $K_\tau$ where $L$ and $K_{sym}$ represent, respectively, the slope and curvature parameters of the symmetry energy at $\rho_0$. It can be expressed accurately as $K_\tau=K_{sym}-6L-\frac{Q_0}{K_\infty}L$ where $Q_0$ is the third-order derivative parameter of symmetric nuclear matter at $\rho_0$. The results of this addendum to Phys. Rev. C 80, 011305(R) (2009) indicate that the $Q_0$ contribution to $K_\tau$ is not insignificant.

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