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research article

Simple metastable de Sitter vacua in N=2 gauged supergravity

Catino, Francesca
•
Scrucca, Claudio A.  
•
Smyth, Paul  
2013
Journal of High Energy Physics

We construct a simple class of N=2 gauged supergravity theories that admit metastable de Sitter vacua, generalizing the recent work done in the context of rigid supersymmetry. The setup involves one hypermultiplet and one vector multiplet spanning suitably curved quaternionic-Kahler and special-Kahler geometries, with an Abelian gauging based OH a single triholomorphic isometry, but neither Fayet-Iliopoulos terms nor non-Abelian gauge symmetries. We construct the most general model of this type and show that in such a situation the possibility of achieving metastable supersymmetry breaking vacua crucially depends on the value of the cosmological constant V relative to the gravitino mass squared m(3/2)(2) in Planck units. In particular, focusing on de Sitter vacua with positive V, we show that metastability is only possible when V greater than or similar to 2.17 m(3/2)(2). We also derive an upper bound on the lightest scalar mass in this kind of model relative to the gravitino mass m(3/2) as a function of the cosmological constant V, and discuss its physical implications.

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Type
research article
DOI
10.1007/Jhep04(2013)056
Web of Science ID

WOS:000321208400056

Author(s)
Catino, Francesca
Scrucca, Claudio A.  
Smyth, Paul  
Date Issued

2013

Publisher

Springer Nature

Published in
Journal of High Energy Physics
Issue

4

Start page

56

Subjects

Supersymmetry Breaking

•

Extended Supersymmetry

•

Supergravity Models

•

dS vacua in string theory

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GR-SC  
Available on Infoscience
December 9, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/97609
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