论文标题
来自GOGNY样能量密度功能的状态和单核子电位的核方程封装了核子核子短距离相关性的效应
Nuclear Equation of State and Single-nucleon Potential from Gogny-like Energy Density Functionals Encapsulating Effects of Nucleon-nucleon Short-range Correlations
论文作者
论文摘要
核子核子短距离相关（SRCS）在单核动量分布函数中诱导高动量尾巴（HMT）$ n_ {ǩ}^J（ρ，δ）$在冷中子富含物质中。尽管有明确的实验证据表明，中子和质子的SRC/HMT效应不同，并且它们的强度在很大程度上取决于有限核的同胞素不对称性，主要基于电子核核散射实验，但在实验上，人们对SRC/HMT在密集的中子中的SRC/HMT效应进行了实验，而不是众所周知的。为了促进富含中子中子的物质中SRC/HMT效应的进一步探索，尤其是涉及高能放射性束的重子反应以及对中子恒星及其合并的多通电器观察，通过将SRC诱导的HMT纳入$ n_ {pogo n_}^J}^J}^j}^j}^j（ρ，Δ对状态方程（EOS）的影响，尤其是其对称能量项和密集的不对称核次物质（ANM）中的对称能量项和单核势。 Using a parametrization as a surrogate for the momentum-dependent kernel in the Gogny-like energy density functional (EDF) we derive analytical expressions for all components of the ANM EOS and their characteristics (e.g., magnitude, slope and curvature as well as nucleon effective mass) at saturation density $ρ_0$ as well as the momentum-dependent single-nucleon optical potential in neutron-rich matter using表征HMT $ρ_0$的核相互作用以及大小，形状和同胞依赖性的参数。还研究了SRC/HMT对中子恒星性质的影响的一些后果。
Nucleon-nucleon short-range correlations (SRCs) induce a high momentum tail (HMT) in the single-nucleon momentum distribution function $n_{ǩ}^J(ρ,δ)$ in cold neutron-rich matter. While there are clear experimental evidences that the SRC/HMT effects are different for neutrons and protons and their strengths depend strongly on the isospin asymmetry of finite nuclei mostly based on electron-nucleus scattering experiments, much less is known experimentally about the SRC/HMT effects in the dense neutron-rich matter. To facilitate further explorations of SRC/HMT effects in dense neutron-rich matter especially with heavy-ion reactions involving high-energy radioactive beams as well as multimessenger observations of neutron stars and their mergers, by incorporating the SRC-induced HMT in $n_{ǩ}^J(ρ,δ)$ into a Gogny-like energy density functional we study SRC/HMT effects on the equation of state (EOS) especially its symmetry energy term and single-nucleon potential in the dense asymmetric nucleonic matter (ANM). Using a parametrization as a surrogate for the momentum-dependent kernel in the Gogny-like energy density functional (EDF) we derive analytical expressions for all components of the ANM EOS and their characteristics (e.g., magnitude, slope and curvature as well as nucleon effective mass) at saturation density $ρ_0$ as well as the momentum-dependent single-nucleon optical potential in neutron-rich matter using parameters characterizing nuclear interactions as well as the size, shape and isospin dependence of the HMT at $ρ_0$. Some consequences of the SRC/HMT effects on properties of neutron stars are also studied.
