标题： 关于高能中子星因出现$d^*$-六夸克物质而失去稳定性 显示英文标题

标题： On the Destabilization of High-Mass Neutron Stars by the Emergence of $d^*$-Hexaquarks

摘要： 我们研究了首个非平凡六夸克态 \$$d^*$(2380)\$ 对高密度中子星物质状态方程的影响，并探讨了其存在对中子星的后果。中子星核心区域的物质用密度相关的相对论平均场理论来描述。 我们的结果显示，在本文考察的参数空间内：(i) 出现$d^*$凝聚体的临界密度介于核饱和密度的 4 到 5 倍之间，(ii) 发现$d^*$六夸克仅存在于相当大质量的中子星中，(iii) 大质量中子星核心区域的物质仅有相对较小部分可能包含六夸克。 显示英文摘要

摘要： We study the effects of the first nontrivial hexaquark, $d^*$(2380), on the equation of state of dense neutron star matter and investigate the consequences of its existence for neutron stars. The matter in the core regions of neutron stars is described using density-dependent relativistic mean-field theory. Our results show that within the parameter spaces examined in our paper, (i) the critical density at which the $d^*$ condensate emerges lies between 4 and 5 times the nuclear saturation density, (ii) $d^*$ hexaquarks are found to exist only in rather massive neutron stars, (iii) only relatively small fractions of the matter in the core of a massive neutron star may contain hexaquarks.