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Mass Varying Neutrinos With More Than One Species Of Neutrinos

In the context of Mass Varying Neutrinos(MaVaNs) we study a model in which a scalar field is coupled to more than one species of neutrinos with different masses. In general, adiabatic models of non-relativistic MaVaNs are heavily constrained by their stability towards the formation of neutrino nuggets. These constraints also apply to models with more than one neutrino species, and we find that using the lightest neutrino, which is still relativistic, as an explanation for dark energy does not work because of a feedback mechanism from the heavier neutrinos.

preprint2009arXivOpen access

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