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Neutrino mixing contribution to the cosmological constant

M. Blasone·A. Capolupo·S. Capozziello·S. Carloni·G. Vitiello
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Abstract

We show that the non-perturbative vacuum structure associated with neutrino mixing leads to a non-zero contribution to the value of the cosmological constant. Such a contribution comes from the specific nature of the mixing phenomenon. Its origin is completely different from the one of the ordinary contribution of a massive spinor field. We estimate this neutrino mixing contribution by using the natural cut--off appearing in the quantum field theory formalism for neutrino mixing and oscillation.

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M. Blasone, A. Capolupo, S. Capozziello, S. Carloni, G. Vitiello. 2004-02-03. Neutrino mixing contribution to the cosmological constant. https://doi.org/10.1016/j.physleta.2004.02.004

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