论文标题
从中子皮肤厚度$^{48} $ ca限制核对称能量参数
Constraining Nuclear Symmetry Energy parameters from Neutron skin thickness of $^{48}$Ca
论文作者
论文摘要
在目前的工作中，我们使用有限范围有效相互作用来计算$^{48} $ CA中的中子皮肤厚度，并将这些数量与核对称能量的参数相关联。 $^{48} $ CA中的中子皮肤厚度的可用实验数据用于推断有关饱和度和降低密度下核对称能的密度斜率参数和曲率对称参数的信息。我们获得了约束，例如$ 54.5 \ leq l（ρ_0）\ leq 97.5 $ MEV和$ 47.3 \ leq l（ρ_C）\ leq 57.1 $ MEV，用于密度坡度参数。曲率对称能量参数上的约束作为$ -170.7 \ leq k_ {sym}（ρ_0）\ leq -43.4 $ MEV和$ -80.8 \ leq k_ {sym}（ρ_C）\ leq k_ {sym}（ρ_C）获得了$^{48} $ CA中的中子皮肤厚度与$^{2088} $ Pb中的中子皮肤厚度之间的线性关系。
In the present work, we use a finite range effective interaction to calculate the neutron skin thickness in $^{48}$Ca and correlate these quantities with the parameters of nuclear symmetry energy. Available experimental data on the neutron skin thickness in $^{48}$Ca are used to deduce information on the density slope parameter and the curvature symmetry parameter of the nuclear symmetry energy at saturation and at subsaturation densities. We obtained the constraints such as $54.5\leq L(ρ_0) \leq 97.5$ MeV and $47.3\leq L(ρ_c) \leq 57.1$ MeV for the density slope parameter. The constraints on the curvature symmetry energy parameter are obtained as $-170.7\leq K_{sym}(ρ_0) \leq -43.4$ MeV and $-80.8\leq K_{sym}(ρ_c) \leq 23.8$ MeV. A linear relation between the neutron skin thickness in $^{48}$Ca and in $^{2088}$Pb is obtained.
