Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-09-19
Phys.Rev.D77:045015,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 5 figures, revtex, typos corrected
Scientific paper
10.1103/PhysRevD.77.045015
We present detailed analyses of the vacuum structure of the scalar potential in a supersymmetric Mass Varying Neutrinos model. The observed dark energy density is identified with false vacuum energy and the dark energy scale of order $(10^{-3}eV)^4$ is understood by gravitationally suppressed supersymmetry breaking scale, $F({TeV})^2/M_{Pl}$, in the model. The vacuum expectation values of sneutrinos should be tiny in order that the model works. Some decay processes of superparticles into acceleron and sterile neutrino are also discussed in the model.
Takahashi Ryo
Tanimoto Morimitsu
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