190981
20181203023334.0
1029-8479
10.1007/Jhep04(2013)056
doi
000321208400056
ISI
ARTICLE
Simple metastable de Sitter vacua in N=2 gauged supergravity
New York
2013
Springer
2013
25
Journal Articles
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.
Supersymmetry Breaking
Extended Supersymmetry
Supergravity Models
dS vacua in string theory
Catino, Francesca
Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany
Scrucca, Claudio A.
181759
244581
Smyth, Paul
218010
245736
4
Journal Of High Energy Physics
GR-SC
252314
U11777
oai:infoscience.tind.io:190981
article
SB
EPFL-ARTICLE-190981
EPFL
PUBLISHED
REVIEWED
ARTICLE