Do data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?

G. La Vacca; J. R. Kristiansen; L. P. L. Colombo; R. Mainini; S. A. Bonometto

doi:10.1016/j.nuclphysbps.2009.07.088

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arXiv · 0906.3369

Do data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?

G. La Vacca·J. R. Kristiansen·L. P. L. Colombo·R. Mainini·S. A. Bonometto

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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~1/2m_p, m_ν~0.12eV each flavor). We assume DE to be a self--interacting scalar field and use a standard Monte Carlo Markov Chain approach.

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G. La Vacca, J. R. Kristiansen, L. P. L. Colombo, R. Mainini, S. A. Bonometto. 2009-06-18. Do data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?. https://doi.org/10.1016/j.nuclphysbps.2009.07.088

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