# Cosmological Constant in SUGRA Models Inspired by Degenerate Vacua

@article{Froggatt2008CosmologicalCI,
title={Cosmological Constant in SUGRA Models Inspired by Degenerate Vacua},
author={Colin D. Froggatt and Roman Nevzorov and Holger Bech Nielsen},
journal={arXiv: High Energy Physics - Theory},
year={2008}
}
• Published 2 October 2008
• Physics
• arXiv: High Energy Physics - Theory
55 M 4 Z spread all over the Universe, which is responsible for its accelerated expansion. This energy density is incredibly small as compared with the contribution of QCD condensates to the total vacuum energy density, which is expected to be of order � 4 ≃ 10 74 M 4 Pl . An even much larger contribution ∼ v 4 ≃ 10 62 M 4 Pl must come from the electroweak symmetry breaking, while the contribution of zero–modes should push the total vacuum energy density up to ∼ M 4 Pl . Because of the enormous…
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