论文标题
势能表面和具有Skyrme能量密度的超重量核的形成
Potential energy surface and formation of superheavy nuclei with the Skyrme energy-density functional
论文作者
论文摘要
在Skyrme能量密度功能理论的框架内，计算核核电位的核能，并用不同的有效性获得势能表面，以准确估算大型融合反应中超酸核的形成横截面。潜在口袋的宽度和高度受到Skyrme有效力Skm，Skm $^{\ ast} $，SKP，SIII，SKA和SLY4的影响，它们对应于Isospin对称性核物质的不同状态方程。发现核核电位与碰撞方向和Skyrme参数有关。通过增加不可压缩的核物质模量，更令人反感的核能发音。 $^{48} $ ca+$^{238} $ U的融合蒸发反应中的可用数据通过SKM $^{\ ast} $参数很好地复制，通过将其实现到Dinuclear System模型中。
Within the framework of Skyrme energy-density functional theory, the nucleus-nucleus potential is calculated and potential energy surface is obtained with different effective forces for accurately estimating the formation cross sections of superheavy nuclei in massive fusion reactions. The width and height of the potential pocket are influenced by the Skyrme effective forces SkM, SkM$^{\ast}$, SkP, SIII, Ska and SLy4, which correspond to the different equation of state for the isospin symmetry nuclear matter. It is found that the nucleus-nucleus potential is associated with the collision orientation and Skyrme parameters. More repulsive nuclear potential is pronounced with increasing the incompressible modulus of nuclear matter. The available data in the fusion-evaporation reaction of $^{48}$Ca+$^{238}$U are nicely reproduced with the SkM$^{\ast}$ parameter by implementing into the dinuclear system model.
