Journal
ASTROPARTICLE PHYSICS
Volume 27, Issue 5, Pages 406-410Publisher
ELSEVIER
DOI: 10.1016/j.astropartphys.2007.01.007
Keywords
cosmology; cosmic microwave radiation; neutrinos
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Recently, the Heidelberg- Moscow double beta decay experiment has claimed a detection for a neutrino mass with high significance. Here we consider the impact of this measurement on the determination of the dark energy equation of state. By combining the Heidelberg-Moscow result with the WMAP 3-years data and other cosmological datasets we constrain the equation of state to -1.67 < w < -1.05 at 95% c.l. Interestingly enough, coupled neutrino-dark energy models may be consistent with such equation of state. While future data are certainly needed for a confirmation of the controversial Heildelberg-Moscow claim, our result shows that future laboratory searches for neutrino masses may play a crucial role in the determination of the dark energy properties. (c) 2007 Elsevier B.V. All rights reserved.
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