论文标题
动态的黑暗部门和中微子质量和丰度
Dynamical Dark sectors and Neutrino masses and abundances
论文作者
论文摘要
我们研究了具有时间依赖的耦合参数的广义相互作用的暗物质 - 黑物 - 漆黑的能量情景，这也允许中微子部门的自由。这些模型在幻影和精髓制度中进行了测试，其特征是状态方程$ W_x <-1 $和$ W_X> -1 $。我们的分析表明，对于某些方案，Hubble常数$ H_0 $以及群集参数$ s_8 $的现有紧张局势可以大大减轻。浮雕要么是由于\ textit {（a）}一个位于幻影区域内的暗能量组件。或\ textit {（b）}在典型场景中存在动态耦合。将大量的中微子纳入交互计划并不影响宇宙参数的约束，也不影响对自由度的总数或相对论程度的界限，$ n _ {\ rm eff} $，这些$ n _ {\ rm eff} $通常是非常强大的，通常与规范的预测$ n _ _ _ {\ rm cymistical countialical countialical countialical countialical countialical countical comportialiss county comportialiss comportife $ n _ {\ rm eff} $ complant comportiach $ n _ {\ rm eff} $。最严格的中微子质量$m_ν$是$m_ν<0.116 $ eV，并且在典型的场景中获得了物质质量能量密度仅受到动态黑暗扇区耦合的存在的微微影响。
We investigate generalized interacting dark matter-dark energy scenarios with a time-dependent coupling parameter, allowing also for freedom in the neutrino sector. The models are tested in the phantom and quintessence regimes, characterized by an equation of state $w_x<-1$ and $w_x>-1$, respectively. Our analyses show that for some of the scenarios the existing tensions on the Hubble constant $H_0$ and on the clustering parameter $S_8$ can be significantly alleviated. The relief is either due to \textit{(a)} a dark energy component which lies within the phantom region; or \textit{(b)} the presence of a dynamical coupling in quintessence scenarios. The inclusion of massive neutrinos into the interaction schemes does not affect neither the constraints on the cosmological parameters nor the bounds on the total number or relativistic degrees of freedom $N_{\rm eff}$, which are found to be extremely robust and, in general, strongly consistent with the canonical prediction $N_{\rm eff}=3.045$. The most stringent bound on the total neutrino mass $M_ν$ is $M_ν<0.116$ eV and it is obtained within a quintessence scenario in which the matter mass-energy density is only mildly affected by the presence of a dynamical dark sector coupling.
