论文标题

无及时解决哈勃紧张解决方案的指南:物质扰动

No-go guide for late-time solutions to the Hubble tension: Matter perturbations

论文作者

Cai, Rong-Gen, Guo, Zong-Kuan, Wang, Shao-Jiang, Yu, Wang-Wei, Zhou, Yong

论文摘要

哈勃的张力似乎是一场危机,在Cepheids校准的IA类超新星的最新局部距离梯子测量与宇宙微波背景数据的全球拟合约束之间,$ \sim5σ$差异。为了缩小哈勃张力可能的延迟解决方案,我们在最近的一项研究中使用了[Phys。 Rev. D 105,L021301(2022)]改进的反向距阶梯方法通过从宇宙中的圆锥指定器数据高红移的绝对测量来校准,并且在$λ$ CDM模型以外的$λ$ CDM型号基于cosmetrization以基于cosmic age的代表的$λ$ CDM模型中,没有发现有吸引力的新物理学证据。在本文中,我们通过包括晚期扰动生长数据进一步研究了这种改善的反距阶梯方法的观点。独立于数据集选择,模型参数化和诊断数量($ s_8 $和$ s_ {12} $),较晚的新物理学超出了$λ$ CDM模型,因此强烈不利,以便进一步增强了Hubble张力的前期无时间指南。

The Hubble tension seems to be a crisis with $\sim5σ$ discrepancy between the most recent local distance ladder measurement from type Ia supernovae calibrated by Cepheids and the global fitting constraint from the cosmic microwave background data. To narrow down the possible late-time solutions to the Hubble tension, we have used in a recent study [Phys. Rev. D 105, L021301 (2022)] an improved inverse distance ladder method calibrated by the absolute measurements of the Hubble expansion rate at high redshifts from the cosmic chronometer data, and found no appealing evidence for new physics at the late time beyond the $Λ$CDM model characterized by a parametrization based on the cosmic age. In this paper, we further investigate the perspective of this improved inverse distance ladder method by including the late-time matter perturbation growth data. Independent of the dataset choices, model parametrizations, and diagnostic quantities ($S_8$ and $S_{12}$), the new physics at the late time beyond the $Λ$CDM model is strongly disfavored so that the previous late-time no-go guide for the Hubble tension is further strengthened.

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