AI 中文总结
研究提出夸克物质框架扩展，含u、d、s夸克与重子八重态。通过施加β平衡确定夸克分数，用有效相互作用描述强子部分。发现夸克机制可降低超子出现临界密度、提高超子星最大质量，缓解超子难题。
AI 中文摘要
我们提出了夸克物质框架的扩展，该框架包括u、d和s夸克以及完整的重子八重态。在这个扩展框架内，我们在重子和轻子之间施加β平衡，同时根据重子的组成夸克含量确定夸克分数。八重态重子的强子部分由最近基于N3LO Skyrme赝势发展的密度、动量和同位旋依赖的有效相互作用描述，而夸克和轻子被视为自由粒子。我们发现，由于核子在夸克物质中被转移到更高动量态且其化学势相应升高，夸克机制可以显著降低中子星中超子出现的临界密度。此外，夸克机制可以显著使超子星物质的状态方程变硬，从而提高超子星的最大质量，有助于缓解超子难题。
英文摘要
We propose an extension of the quarkyonic matter framework that includes $u$, $d$, and $s$ quarks and the full baryon octet. Within this extended framework, we impose beta-equilibrium between baryons and leptons, while determining the quark fractions from the constituent quark contents of baryons. The hadronic sector of octet baryons is described by a recently developed density, momentum and isospin dependent effective interaction based on the N3LO Skyrme pseudopotential, whereas quarks and leptons are treated as free particles. We find that the quarkyonic mechanism can obviously reduce the critical density for hyperon appearance in neutron stars due to the fact that the nucleons are displaced to higher momentum states in quarkyonic matter and their chemical potentials rise accordingly. Furthermore, the quarkyonic mechanism can significantly stiffen the equation of state of hyperon star matter and thereby enhance the hyperon star maximum mass, thus helping to mitigate the hyperon puzzle.
Comments11 pages, 3 figures, 1 table. Submitted version with Fig. 3 updated
