Nondegeneracy of massive neutrinos and elastic interactions in the dark sector,Physical Review D

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Nondegeneracy of massive neutrinos and elastic interactions in the dark sector
Physical Review D ( IF 4.6 ) Pub Date : 2024-07-19 , DOI: 10.1103/physrevd.110.023527
Jose Beltrán Jiménez ₁ , David Figueruelo ₁ , Florencia Anabella Teppa Pannia ₂

Affiliation

Cosmological models featuring an elastic interaction in the dark sector have 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 since they suppress structures in a similar manner. In this work we investigate the presence of such a degeneracy and show that the two effects do not exhibit strong correlations.

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