Relaxing cosmological constraints on current neutrino masses: Impact of the Coupling on Perturbation

This paper is available on arxiv under CC 4.0 license. Authors: Vitor da Fonseca, Instituto de Astrof´ısica e Ciˆencias do Espa¸co, Faculdade de Ciˆencias da Universidade de Lisboa; Tiago Barreiro, Instituto de Astrof´ısica e Ciˆencias do Espa¸co, Faculdade de Ciˆencias da Universidade de Lisboa and 2ECEO, Universidade Lus´ofona; Nelson J. Nunes, Instituto de Astrof´ısica e Ciˆencias do Espa¸co, Faculdade de Ciˆencias da Universidade de Lisboa.

Perturbation equations The perturbed energy density and pressure of the interacting neutrinos have been derived in previous studies : where the neutrino anisotropic stress σν is not changed by the coupling.

Perturbation equations The perturbed energy density and pressure of the interacting neutrinos have been derived in previous studies : where the neutrino anisotropic stress σν is not changed by the coupling.

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