Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2011-01-12
Sci. China: Phys. Mech. Astro. Vol. 54 Suppl. 1:s124-s129, 2011
Physics
Nuclear Physics
Nuclear Theory
6 pages, 7 figures. Typos fixed. Contribution to a special issue in Science China: Physics, Mechanics & Astronomy
Scientific paper
10.1007/s11433-011-4415-9
The bulk parameters characterizing the energy of symmetric nuclear matter and the symmetry energy defined at normal nuclear density $\rho_0 $ provide important information on the equation of state (EOS) of isospin asymmetric nuclear matter. While significant progress has been made in determining some lower order bulk characteristic parameters, such as the energy $E_0(\rho_0)$ and incompressibility $K_0$ of symmetric nuclear matter as well as the symmetry energy $E_{sym}(\rho_0)$ and its slope parameter $L$, yet the higher order bulk characteristic parameters are still poorly known. Here, we analyze the correlations between the lower and higher order bulk characteristic parameters within the framework of Skyrme Hartree-Fock energy density functional and then estimate the values of some higher order bulk characteristic parameters. In particular, we obtain $J_0=-355 \pm 95$ MeV and $I_0=1473 \pm 680$ MeV for the third-order and fourth-order derivative parameters of symmetric nuclear matter at $\rho_0 $ and $K_{sym} = -100 \pm 165$ MeV, $J_{sym} = 224 \pm 385$ MeV, $I_{sym} = -1309 \pm 2025$ MeV for the curvature parameter, third-order and fourth-order derivative parameters of the symmetry energy at $\rho_0 $, using the empirical constraints on $E_0(\rho_0)$, $K_0$, $E_{sym}(\rho_0)$, $L$, and the isoscalar and isovector nucleon effective masses. Furthermore, our results indicate that the three parameters $E_0(\rho_0)$, $K_0$, and $J_0$ can reasonably characterize the EOS of symmetric nuclear matter up to $2\rho_0 $ while the symmetry energy up to $2\rho_0 $ can be well described by $E_{sym}(\rho_0)$, $L$, and $K_{sym}$.
No associations
LandOfFree
Higher order bulk characteristic parameters of asymmetric nuclear matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Higher order bulk characteristic parameters of asymmetric nuclear matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Higher order bulk characteristic parameters of asymmetric nuclear matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-265365