AI 中文总结
该研究基于布鲁塞尔 - Skyrme相互作用，在贝叶斯框架下开发致密和富中子物质模型，通过多种约束条件及‘合理性检查’探索其描述高密度核物质的能力，因\(m_\mathrm{eff}\)特性致热压力有非单调行为，是相关研究的推广。
AI 中文摘要
基于布鲁塞尔 - Skyrme相互作用的核物质非相对论理论，在贝叶斯框架下用于开发致密和富中子物质模型。采用了一组约束条件，包括四个最著名的核经验参数、纯中子物质中每个粒子能量的密度依赖性、纯中子物质和对称核物质中中子的朗道有效质量（\(m_\mathrm{eff}\)）的密度依赖性以及中子星能维持的最大引力质量下限。还增加了一些‘合理性检查’，对声速、中子和质子朗道有效质量以及费米速度的值进行约束。模型集合充分探索了非相对论布鲁塞尔 - Skyrme有效相互作用描述超过几倍核饱和密度的核物质的能力。由于\(m_\mathrm{eff}\)明显的U形密度依赖性，所有模型的热压力（\(p_\mathrm{th}\)）随密度呈现非单调的‘上升 - 下降’行为，极端情况下\(p_\mathrm{th} < 0\)。这项工作是[Beznogov和Raduta，《物理评论C》110，035805（2024）]的推广。
英文摘要
The nonrelativistic theory of nuclear matter (NM) based on Brussels-Skyrme interactions is employed to develop models for dense and neutron-rich matter within a Bayesian framework. We employ the following set of constraints: the four best-known nuclear empirical parameters, density dependence of the energy per particle in pure neutron matter (PNM), density dependence of the Landau effective mass ($m_\mathrm{eff}$) of neutrons in PNM and symmetric NM, and a lower limit on the maximum gravitational mass that neutron stars (NSs) can sustain. In addition, a number of ``sanity checks'' are added: the values of the speed of sound, neutron and proton Landau effective masses and Fermi velocities are constrained up to the central density of the most massive NS configuration and for isospin asymmetries $δ=(n_n-n_p)/(n_n+n_p)$ ranging from 0 to 1. Our ensemble of models \emph{fully} explores the capacity of non-relativistic Brussels-Skyrme effective interactions to describe NM at densities exceeding several times the nuclear saturation density. This is a necessary step toward a better understanding of the properties of dense matter and possible correlations between the parameters of NSs and the parameters of NM. Due to pronounced U-shaped density-dependencies of $m_\mathrm{eff}$, all our models exhibit a non-monotonic ``rise-and-fall'' behavior of the thermal pressure ($p_\mathrm{th}$) as a function of density, which in extreme cases leads to $p_\mathrm{th} < 0$. This work is a generalization of [Beznogov and Raduta, Phys. Rev. C 110, 035805 (2024)].
Comments15 pages, 8 figures, 3 tables. Submitted to PRC
