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A new class of de Sitter vacua in type IIB large volume compactifications

Acceso Abierto
ID Minciencias: ART-0001369665-44
Ranking: ART-ART_A1

Abstract:

We construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the `Large Volume Scenario' anti-de Sitter vacua, and can analogously be realised at parametrically large volume and weak string coupling, using standard ${\cal N}=1$ supergravity. For these new vacua, a positive vacuum energy is achieved from the inclusion of a small amount of flux-induced supersymmetry breaking in the complex structure and axio-dilaton sector, and no additional `uplift' contribution (e.g.~from anti-branes) is required. We show that the approximate no-scale structure of the effective theory strongly influences the spectrum of the stabilised moduli: one complex structure modulus remains significantly lighter than the supersymmetry breaking scale, and metastability requires only modest amounts of tuning. After discussing these general results, we provide a recipe for constructing de Sitter vacua on a given compactification manifold, and give an explicit example of a de Sitter vacuum for the compactification on the Calabi-Yau orientifold realised in $\mathbb{CP}^4_{11169}$. Finally, we note that these solutions have intriguing implications for phenomenology, predicting no superpartners in the spectrum below $\sim$50 TeV, and no WIMP dark matter.

Tópico:

Black Holes and Theoretical Physics

Citaciones:

Citations: 46
46

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Información de la Fuente:

SCImago Journal & Country Rank
FuenteJournal of High Energy Physics
Cuartil año de publicaciónNo disponible
Volumen2017
Issue10
Páginas1 - 34
pISSNNo disponible
ISSNNo disponible

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