The emergence of an increasingly strong tension between the Hubble rate inferred from early and late time observations has reinvigorated interest in non-standard scenarios, with the aim of reconciling these measurements. One such model involves interactions between Dark Matter and Dark Energy. Here we consider a specific form of the coupling between these two fluids proportional to the Dark Energy energy density, which has been shown to mitigate the Hubble tension. We complement the work already discussed in several previous analysis and show that, once all relevant cosmological probes are included, the value of the Hubble parameter in this model is $H_0=69.82_{-0.76}^{+0.63}$ km/(s Mpc). Furthermore, we also perform a statistical model comparison, finding a $\Delta\chi^2$ of $-2.15$ with the inclusion of one additional free parameter. In order to fully test this model as a solution to the $H_0$ tension, future missions such as Euclid will prove vital. For this reason, we also forecast the sensitivity of upcoming planned missions to the main parameters affected by these dark sector interactions and show that within the next decade we will be able to conclusively confirm or disprove the validity of this model as a solution to the $H_0$ tension.

中文翻译：

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揭示暗物质-暗能量相互作用

从早期和晚期观测推断出的哈勃速率之间出现越来越强烈的紧张关系，重新激发了对非标准情景的兴趣，目的是协调这些测量结果。其中一种模型涉及暗物质和暗能量之间的相互作用。在这里，我们考虑与暗能量能量密度成正比的这两种流体之间耦合的特定形式，这已被证明可以减轻哈勃张力。我们补充了之前几个分析中已经讨论过的工作，并表明，一旦包括所有相关的宇宙学探测器，该模型中哈勃参数的值为 $H_0=69.82_{-0.76}^{+0.63}$km/( s Mpc）。此外，我们还进行了统计模型比较，发现 $\Delta\chi^2$ 为 $-2.15$，其中包含一个额外的自由参数。为了充分测试该模型作为 $H_0$ 紧张局势的解决方案，未来的任务（例如 Euclid）将被证明是至关重要的。出于这个原因，我们还预测了即将到来的计划任务对受这些暗区相互作用影响的主要参数的敏感性，并表明在未来十年内，我们将能够最终确认或反驳该模型作为解决方案的有效性。 H_0$ 紧张。