Dark Energy density in Split SUSY models inspired by degenerate vacua

Details Dark Energy density in Split SUSY models inspired by degenerate vacua Dark Energy density in Split SUSY models inspired by degenerate vacua

2010-12-22

arxiv.org/abs/1012.5121v1

PoS ICHEP2010:442,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Parallel talk at ICHEP 2010, Paris, France, July 2010, 4 pages

Scientific paper

It is well known that global symmetries protect local supersymmetry and a zero value for the cosmological constant in no--scale supergravity. The breakdown of these symmetries, which ensure the vanishing of the vacuum energy density, results in a set of degenerate vacua with broken and unbroken supersymmetry leading to the natural realisation of the multiple point principle (MPP). Assuming the degeneracy of vacua with broken and unbroken SUSY in the hidden sector we estimate the value of the cosmological constant. We argue that the observed value of the dark energy density can be reproduced in the split-SUSY scenario if the SUSY breaking scale is of the order of 10^{10} GeV.

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