论文标题
在Planck 2018之后与冷暗物质相互作用的真空能量的中微子质量的限制
Constraints on neutrino mass in the scenario of vacuum energy interacting with cold dark matter after Planck 2018
论文作者
论文摘要
在这项工作中，我们通过使用最新的宇宙学观测值调查了与冷暗物质相互作用的真空能量（缩写为I $λ$ CDM）的真空能量中中微子质量的约束。我们考虑四种典型的交互形式，即$ q =βHρ_{\ rm de} $，$ q =βHρ_{\ rm c} $，$ q =βH_{0}ρ_{\ rm de} $ {\ rm de} $ i $λ$ CDM方案。为了避免在相互作用的暗能量模型中存在大规模的不稳定性问题，我们采用扩展的参数化后油炸方法来相互作用的暗能量来计算这些模型中暗能的扰动演化。这项工作中使用的观察数据包括Planck 2018数据发布中的宇宙微波背景（CMB）测量，Baryon声学振荡（BAO）数据，IA型超级新星（SN）观察（SN）观察（Pantheon Compilation）和2019年本地距离级别的位置$ H_______的$ h__ ^ $ h_ from phub froms $ h__ ^ $。我们发现，与$λ$ cdm+$ \ summ_ν$模型中的$ \ sum summ_ν$相比，在四个I $ u $λ$ CDM+$ \ $ \ summ_ν$模型中，约束是宽松的。在考虑中微子的三个质量层次结构时，$ \ summ_ν$的约束在退化的层次结构案例中是最紧密的，在反向的层次结构案例中最松散。此外，在四个I $λ$ CDM+$ \ summ_ν$型号中，使用CMB+BAO+SN+$ H_ {0} $数据组合的耦合参数$β$的值比使用CMB+BAO+SN数据组合的值和$β> 0 $ les flues flues flues flus $β> $β> $ qub lave lats flues。 CMB+BAO+SN+$ H_ {0} $数据组合。本文还讨论了$ h_ {0} $张力的问题。我们发现，与$λ$ CDM+$ \ summ_ν$模型相比，$ h_ {0} $张力可以在某种程度上减轻I $λ$ CDM+$ \ summ_ν$模型。
In this work, we investigate the constraints on the total neutrino mass in the scenario of vacuum energy interacting with cold dark matter (abbreviated as I$Λ$CDM) by using the latest cosmological observations. We consider four typical interaction forms, i.e., $Q=βH ρ_{\rm de}$, $Q=βH ρ_{\rm c}$, $Q=βH_{0} ρ_{\rm de}$, and $Q=βH_{0} ρ_{\rm c}$, in the I$Λ$CDM scenario. To avoid the large-scale instability problem in interacting dark energy models, we employ the extended parameterized post-Friedmann method for interacting dark energy to calculate the perturbation evolution of dark energy in these models. The observational data used in this work include the cosmic microwave background (CMB) measurements from the Planck 2018 data release, the baryon acoustic oscillation (BAO) data, the type Ia supernovae (SN) observation (Pantheon compilation), and the 2019 local distance ladder measurement of the Hubble constant $H_{0}$ from the Hubble Space Telescope. We find that, compared with those in the $Λ$CDM+$\sum m_ν$ model, the constrains on $\sum m_ν$ are looser in the four I$Λ$CDM+$\sum m_ν$ models. When considering the three mass hierarchies of neutrinos, the constraints on $\sum m_ν$ are tightest in the degenerate hierarchy case and loosest in the inverted hierarchy case. In addition, in the four I$Λ$CDM+$\sum m_ν$ models, the values of coupling parameter $β$ are larger using the CMB+BAO+SN+$H_{0}$ data combination than that using the CMB+BAO+SN data combination, and $β>0$ is favored at more than 1$σ$ level when using CMB+BAO+SN+$H_{0}$ data combination. The issue of the $H_{0}$ tension is also discussed in this paper. We find that, compared with the $Λ$CDM+$\sum m_ν$ model, the $H_{0}$ tension can be alleviated in the I$Λ$CDM+$\sum m_ν$ model to some extent.
