In this work, we study the effect of (anti)kaon condensation on the properties of compact stars that develop hypernuclear cores with and without an admixture of $\mathrm{\Delta }$-resonances. We work within the covariant density functional theory with the parameters adjusted to $K$-atomic and kaon-nucleon scattering data in the kaonic sector. The density-dependent parameters in the hyperonic sector are adjusted to the data on $\mathrm{\Lambda }$ and ${\mathrm{\Xi }}^{-}$ hypernuclei data. The $\mathrm{\Delta }$-resonance couplings are tuned to the data obtained from their scattering off nuclei and heavy-ion collision experiments. We find that (anti)kaon condensate leads to a softening of the equation of state and lower maximum masses of compact stars than in the absence of the condensate. Both the $K^{-}$ and ${\overline{K}}^0$ condensations occur through a second-order phase transition, which implies no mixed-phase formation. For large values of (anti)kaon and $\mathrm{\Delta }$-resonance potentials in symmetric nuclear matter, we observe that condensation leads to an extinction of ${\mathrm{\Xi }}^{-,0}$ hyperons. We also investigate the influence of inclusion of additional hidden-strangeness ${\sigma }^{*}$ meson in the functional and find that it leads to a substantial softening of the equation of state and delay in the onset of (anti)kaons.

中文翻译：

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大质量△共振混合超核恒星与反钾缩合

在这项工作中，我们研究了（反）钾缩合对紧实恒星性质的影响，这些紧实恒星在有或没有掺和氢原子的情况下会发展出超核核心。 $\mathrm{\Delta }$-共鸣。我们在协变密度泛函理论中进行工作，并将参数调整为$ķ$原子扇区中的原子和钾原子核散射数据。高渗扇区中与密度有关的参数已根据以下数据进行了调整：$\mathrm{\Lambda }$ 和 ${\mathrm{\Xi }}^{-}$超核数据。这$\mathrm{\Delta }$共振耦合被调谐到从它们从核中的散射和重离子碰撞实验中获得的数据。我们发现（反）钾冷凝物会导致状态方程变软，致密恒星的最大质量会比不存在冷凝物时降低。这俩${ķ}^{-}$ 和 ${\overline{ķ}}^0$通过二阶相变会发生缩合，这意味着不会形成混合相。对于（anti）kaon和$\mathrm{\Delta }$对称核物质中的共振电位，我们观察到凝结导致 ${\mathrm{\Xi }}^{-，0}$Hyperons。我们还研究了包含其他隐藏的陌生感的影响${\sigma }^{*}$ 在功能上介子，发现它导致状态方程的实质性软化和（反）钾离子的出现延迟。