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

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

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009nuphs.194..254l&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 194, p. 254-259.

Physics

Nuclear Physics

1

Scientific paper

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, m˜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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