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Hauptverfasser: Jiménez, Jose Beltrán, Figueruelo, David, Pannia, Florencia Anabella Teppa
Format: Preprint
Veröffentlicht: 2024
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Online-Zugang:https://arxiv.org/abs/2403.03216
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author Jiménez, Jose Beltrán
Figueruelo, David
Pannia, Florencia Anabella Teppa
author_facet Jiménez, Jose Beltrán
Figueruelo, David
Pannia, Florencia Anabella Teppa
contents Cosmological models featuring an elastic interaction in the dark sector at linear order has been shown to provide a promising scenario for alleviating the $σ_8$ tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos that also contribute to erasing structures at late times. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.
format Preprint
id arxiv_https___arxiv_org_abs_2403_03216
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On the (non-)degeneracy of massive neutrinos and elastic interactions in the dark sector
Jiménez, Jose Beltrán
Figueruelo, David
Pannia, Florencia Anabella Teppa
Cosmology and Nongalactic Astrophysics
Cosmological models featuring an elastic interaction in the dark sector at linear order has been shown to provide a promising scenario for alleviating the $σ_8$ tension. A natural question for these scenarios is whether there could be a degeneracy between the interaction and massive neutrinos that also contribute to erasing structures at late times. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.
title On the (non-)degeneracy of massive neutrinos and elastic interactions in the dark sector
topic Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2403.03216