标度不变性与致密星物质
Scale Invariance and Compact Star Matter
AI总结：
该研究以声速为判据，基于密度依赖平均场方法探讨超致密重子物质中赝共形相的隐藏标度对称性，分析其对致密星可观测量及相关相变的意义。
AI中文摘要：
我们以声速作为强子致密物质中标度对称窗口的判据，探讨超致密重子物质中作为赝共形相的隐藏标度对称性的存在可能性。在遵循Brown-Rho标度的密度依赖平均场方法中，研究发现矢量介子与χ（强子间强关联效应之一）的相互作用非平凡，使得超致密区域内能量动量张量的迹与密度无关，且声速趋近于赝共形相的共形声速。研究表明，在赝共形相中，密度依赖耦合诱导的重排项不会破坏致密星物质中的隐藏标度对称性。我们进一步阐述了致密星的天体物理可观测量，以及其对宇称加倍和夸克-强子相变的意义。
英文摘要：
We present discussions on the possibility of emerging hidden scale symmetry, as a pseudo-conformal phase in super dense baryonic matter, using the velocity of sound as a criterion for a scale symmetry window in hadronic dense matter. In the density dependent mean field approach à la Brown-Rho scaling, it has been observed that the interplay between vector mesons and $ χ$, one of the strongly correlated effects between hadrons, is nontrivial such that the trace of the energy momentum tensor becomes density-independent in the super dense regime and the sound velocity approaches the conformal sound velocity for the pseudo-conformal phase. It is suggested that in the pseudo conformal phase the rearrangement terms induced by density dependent couplings do not spoil the hidden scale symmetry in the compact star matter. We elaborate further on the astrophysically observable quantities of the compact stars and the implications for the parity doubling and the quark-hadron transitions.
