Dark energy and neutrino model in SUSY -- Remarks on active and sterile neutrinos mixing --

Details Dark energy and neutrino model in SUSY -- Remarks on active and sterile neutrinos mixing -- Dark energy and neutrino model in SUSY -- Remarks on active and sterile neutrinos mixing --

2007-04-02

arxiv.org/abs/0704.0186v1

Int.J.Mod.Phys.E16:1529-1540,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 7 figures, to appear in the proceedings of International Workshop on Neutrino Masses and Mixings -- Toward Unified U

Scientific paper

10.1142/S0218301307006861

We consider a Mass Varying Neutrinos (MaVaNs) model in supersymmetric theory. The model includes effects of supersymmetry breaking transmitted by the gravitational interaction from the hidden sector, in which supersymmetry was broken, to the dark energy sector. Then evolutions of the neutrino mass and the equation of state parameter of the dark energy are presented in the model. It is remarked that only the mass of a sterile neutrino is variable in the case of the vanishing mixing between the left-handed and a sterile neutrino on cosmological time scale. The finite mixing makes the mass of the left-handed neutrino variable.

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