The properties of nuclear matter with lattice NN potential in relativistic Brueckner-Hartree-Fock theory.
The properties of nuclear matter with lattice NN potential in relativistic Brueckner-Hartree-Fock theory.
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相对论布鲁克纳-哈特里-福克理论中具有晶格NN势的核物质的性质
DOI：
10.1038/srep35590
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发表时间：
2016-10-18
影响因子：
4.6
通讯作者：
Shen H
中科院分区：
文献类型：
--
作者：
Hu J;Toki H;Shen H
在相对论Brueckner-Hartree-Fock(RBHF)理论中，研究了具有晶格核子-核子(NN)势的核物质的性质。为了在这样一个微观的多体理论中使用这个势，我们首先必须在最新的晶格NN势的基础上构造一个单玻色子交换势(OBEP)。我们考虑了三个介子，即介子、σ介子和ω介子。通过对晶格力的壳层行为和相移的拟合，确定了它们的耦合常数和截止动量。因此，我们用这两种方法得到了OBEP势的两个参数集(命名为LOBEP1和LOBEP2)。我们用LOBEP1和LOBEP2计算了对称和纯中子物质的性质。在非相对论Brueckner-Hartree-Fock情况下，对称核物质的结合能在饱和密度下约为−3和−5 MeV，而在相对论框架下，使用我们的两个参数集，它变成了−8和−12 MeV。对于纯中子物质，由于只考虑同位旋T=1的1S0通道，非相对论和相对论情况下的状态方程非常相似。
We study the properties of nuclear matter with lattice nucleon-nucleon (NN) potential in the relativistic Brueckner-Hartree-Fock (RBHF) theory. To use this potential in such a microscopic many-body theory, we firstly have to construct a one-boson-exchange potential (OBEP) based on the latest lattice NN potential. Three mesons, pion, σ meson, and ω meson, are considered. Their coupling constants and cut-off momenta are determined by fitting the on-shell behaviors and phase shifts of the lattice force, respectively. Therefore, we obtain two parameter sets of the OBEP potential (named as LOBEP1 and LOBEP2) with these two fitting ways. We calculate the properties of symmetric and pure neutron matter with LOBEP1 and LOBEP2. In non-relativistic Brueckner-Hartree-Fock case, the binding energies of symmetric nuclear matter are around −3 and −5 MeV at saturation density, while it becomes −8 and −12 MeV in relativistic framework with 1S0, 3S1, and 3D1 channels using our two parameter sets. For the pure neutron matter, the equations of state in non-relativistic and relativistic cases are very similar due to only consideration 1S0 channel with isospin T = 1 case.
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影响因子：
8.6
作者：
Ishii, N.;Aoki, S.;Hatsuda, T.
通讯作者：
Hatsuda, T.
影响因子：
3.1
作者：
WIRINGA, RB;STOKS, VGJ;SCHIAVILLA, R
通讯作者：
SCHIAVILLA, R
影响因子：
3.1
作者：
BROCKMANN, R;MACHLEIDT, R
通讯作者：
MACHLEIDT, R
影响因子：
3.5
作者：
Aoki, Sinya;Doi, Takumi;Sasaki, Kenji
通讯作者：
Sasaki, Kenji
影响因子：
1.4
作者：
Inoue, Takashi;Aoki, Sinya;Sasaki, Kenji
通讯作者：
Sasaki, Kenji