AI 中文总结
研究构建协变密度泛函有限核保护高密度扩展，通过修改特定通道引入三参数。利用多信使数据贝叶斯分析，表明原始\ddme相互作用受质疑，\ddpc无需扩展，结果支持该扩展非无约束修补，由高密度数据决定且不影响有限核可观测量。
AI 中文摘要
我们通过仅修改有限核校准域之外的同位旋标量-矢量通道，构建了协变密度泛函的有限核保护高密度扩展。该扩展引入了三个控制高密度变形强度、起始点和宽度的参数，而标量和同位旋矢量通道保持不变。利用重离子流约束、大质量脉冲星信息、NICER质量半径测量和GW170817潮汐约束进行的贝叶斯分析表明，相对于其保护的高密度扩展，原始的\ddme相互作用受到强烈质疑，在对重塑的状态方程施加因果/稳定性滤波器后，\(\ln K=\ln(Z_{\rm ext}/Z_{\rm base})=26.67\)，其中\(Z\)表示贝叶斯证据。相比之下，\ddpc作为参考泛函，当前数据不需要对其进行相同的扩展，\(\ln K=-0.44\)。结果支持了这样的解释：所提出的扩展不是无约束的唯象修补：只有当组合的高密度数据需要时，贝叶斯证据才会选择它，而有限核可观测量在数值精度内保持不变。
英文摘要
We construct a finite-nucleus-protected high-density extension of covariant density functionals by modifying only the isoscalar-vector channel outside the finite-nucleus calibration domain. The extension introduces three parameters controlling the strength, onset, and width of the high-density deformation, while the scalar and isovector channels are kept unchanged. A Bayesian analysis using heavy-ion flow constraints, massive-pulsar information, NICER mass-radius measurements, and the GW170817 tidal constraint shows that the original \ddme interaction is strongly disfavored relative to its protected high-density extension, with \(\ln K=\ln(Z_{\rm ext}/Z_{\rm base})=26.67\), where \(Z\) denotes the Bayesian evidence, after imposing a causal/stability filter on the reshaped EOS. In contrast, \ddpc serves as a reference functional for which the same extension is not required by the present data, giving \(\ln K=-0.44\). The result supports the interpretation that the proposed extension is not an unconstrained phenomenological patch: Bayesian evidence selects it only when demanded by the combined high-density data, while finite-nucleus observables remain unchanged within numerical precision.
Comments11 pages,7 figures
