We allow simultaneously for a CDM-DE coupling and non-zero neutrino masses and find that significant coupling and neutrino mass are (slightly) statistically favoured in respect to a cosmology with no coupling and negligible neutrino mass (our best fits are: C ∼ 1 / 2 m p, m ν ∼ 0.12 eV each flavor). We assume DE to be a self-interacting scalar field and use a standard Monte Carlo Markov Chain approach. © 2009 Elsevier B.V. All rights reserved.
LA VACCA, G., Kristiansen, J., Colombo, L., Mainini, R., Bonometto, S. (2009). Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy ?. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 194(C), 254-259 [10.1016/j.nuclphysbps.2009.07.088].
Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy ?
LA VACCA, GIUSEPPE;MAININI, ROBERTO;BONOMETTO, SILVIO
2009
Abstract
We allow simultaneously for a CDM-DE coupling and non-zero neutrino masses and find that significant coupling and neutrino mass are (slightly) statistically favoured in respect to a cosmology with no coupling and negligible neutrino mass (our best fits are: C ∼ 1 / 2 m p, m ν ∼ 0.12 eV each flavor). We assume DE to be a self-interacting scalar field and use a standard Monte Carlo Markov Chain approach. © 2009 Elsevier B.V. All rights reserved.
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