Relaxing cosmological constraints on current neutrino masses: Discussion

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In this paper, researchers present a mass-varying neutrino model driven by scalar field dark energy, relaxing the upper bound on current neutrino mass.

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.

In this study, we investigated a model of massvarying neutrinos in which the mass depends on the value of a scalar field representing the dark energy component. The originality of our work lies in the choice of the quintessence parametrization, which limits the number of free parameters with respect to other approaches such as the CPL parametrization or arbitrary choices of scalar field potentials.

In this study, we investigated a model of massvarying neutrinos in which the mass depends on the value of a scalar field representing the dark energy component. The originality of our work lies in the choice of the quintessence parametrization, which limits the number of free parameters with respect to other approaches such as the CPL parametrization or arbitrary choices of scalar field potentials.

 

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