Linear response theory and neutrino mean free path using Brussels-Montreal Skyrme functionals
Linear response theory and neutrino mean free path using Brussels-Montreal Skyrme functionals
复制标题
使用布鲁塞尔-蒙特利尔 Skyrme 泛函的线性响应理论和中微子平均自由程
DOI：
10.1103/physrevc.90.025804
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发表时间：
2014
影响因子：
3.1
通讯作者：
N. Chamel
中科院分区：
文献类型：
--
作者：
A. Pastore;M. Martini;D. Davesne;J. Navarro;S. Goriely;N. Chamel
在描述有限核和无限均匀核物质的性质时，Messels-Montreal Skyrme泛函是成功的。在他们的最新版本中，这些泛函已经配备了两个额外的密度依赖项，以便同时再现原子核的基态性质和无限核物质性质，同时避免铁磁不稳定性的出现。在本文中，我们扩展了我们以前的线性响应理论的结果，包括在零温度和有限温度纯中子物质的额外条款。最后，我们用这种方法导出了中微子的平均自由程，并与从头算方法进行了比较。
The Brussels-Montreal Skyrme functionals have been successful in describing properties of both finite nuclei and infinite homogeneous nuclear matter. In their latest version, these functionals have been equipped with two extra density-dependent terms in order to reproduce simultaneously ground state properties of nuclei and infinite nuclear matter properties while avoiding at the same time the arising of ferromagnetic instabilities. In the present article, we extend our previous results of the linear response theory to include such extra terms at both zero and finite temperature in pure neutron matter. The resulting formalism is then applied to derive the neutrino mean free path. The predictions from the Brussels-Montreal Skyrme functionals are compared with ab initio methods.