Fission barriers at high angular momentum and the ground state rotational band of the nucleus 254No
Fission barriers at high angular momentum and the ground state rotational band of the nucleus 254No
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DOI：
10.1103/physrevlett.85.1198
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发表时间：
2000-08
影响因子：
8.6
通讯作者：
Egido;Robledo
中科院分区：
文献类型：
--
作者：
Egido;Robledo
在Hartree-Fock-Bogoliubov近似下，采用有限程密度相关的Gogny力，研究了超重核254 No在零角动量和高角动量下的动力学行为.讨论了基态转动带和裂变势垒随角动量的变化。我们发现一个双峰势垒的自旋值（30-40）普朗克的超过2 π和一个单峰势垒的更高的自旋。我们再现相当不错的结合能，基态变形，γ射线能量，和在高自旋测量的裂变势垒高度上的约束。
We study the superheavy nucleus 254No in the framework of the Hartree-Fock-Bogoliubov approximation with the finite-range density-dependent Gogny force, at zero and high angular momentum. The properties of the ground state rotational band and the fission barriers are discussed as a function of angular momentum. We found a two-humped barrier up to spin values of (30-40)Planck's over 2pi and a one-humped barrier for higher spins. We reproduce fairly well with the binding energy, the ground state deformation, the gamma-ray energies, and the bound on the fission barrier height measured at high spin.