Do data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?
arXiv:0906.3369 · doi:10.1016/j.nuclphysbps.2009.07.088
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.
Proceedings of the GGI-Dark Matter and Dark Energy 2009 Workshop