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Current tensions in cosmology, including $H_0$ and $\sigma_8$, provide one ofthe strong reasons to suspect the existence of physics beyond the standardmodel of cosmology ($\Lambda$CDM). In this paper, we investigate if there is arelation between these tensions and beyond cold dark matter scenarios. To modelnon-CDM, we assume a decaying dark matter (DDM) which is unstable and may decayinto two daughter particles, a combination of cold dark matter, warm darkmatter, and dark radiation, to explore a vast era of possibilities. We checkedour model against CMB data and could show that decaying dark matter seems not apromising candidate to address the cosmological tensions.

Can decaying dark matter scenarios alleviate both $H_0$ and $\sigma_8$ tensions?