论文标题
衰减的暗物质方案可以减轻$ H_0 $和$σ_8$张力吗？
Can decaying dark matter scenarios alleviate both $H_0$ and $σ_8$ tensions?
论文作者
论文摘要
宇宙学的当前紧张局势（包括$ h_0 $ and $σ_8$）提供了一个有力的理由之一，即怀疑宇宙学标准模型（$λ$ cdm）以外的物理学存在。在本文中，我们调查了这些紧张局势与寒冷的暗物质情景之间是否存在关系。为了建模非CDM，我们假设一个腐烂的暗物质（DDM），它可能不稳定，可能会腐烂成两个女儿颗粒，即冷暗物质，温暖的暗物质和暗辐射的结合，以探索广阔的可能性时代。我们检查了CMB数据的模型，并可能表明腐烂的暗物质似乎不是解决宇宙张力的有前途的候选人。
Current tensions in cosmology, including $H_0$ and $σ_8$, provide one of the strong reasons to suspect the existence of physics beyond the standard model of cosmology ($Λ$CDM). In this paper, we investigate if there is a relation between these tensions and beyond cold dark matter scenarios. To model non-CDM, we assume a decaying dark matter (DDM) which is unstable and may decay into two daughter particles, a combination of cold dark matter, warm dark matter, and dark radiation, to explore a vast era of possibilities. We checked our model against CMB data and could show that decaying dark matter seems not a promising candidate to address the cosmological tensions.
