000190981 001__ 190981
000190981 005__ 20181203023334.0
000190981 0247_ $$2doi$$a10.1007/Jhep04(2013)056
000190981 022__ $$a1029-8479
000190981 02470 $$2ISI$$a000321208400056
000190981 037__ $$aARTICLE
000190981 245__ $$aSimple metastable de Sitter vacua in N=2 gauged supergravity
000190981 260__ $$bSpringer$$c2013$$aNew York
000190981 269__ $$a2013
000190981 300__ $$a25
000190981 336__ $$aJournal Articles
000190981 520__ $$aWe 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.
000190981 6531_ $$aSupersymmetry Breaking
000190981 6531_ $$aExtended Supersymmetry
000190981 6531_ $$aSupergravity Models
000190981 6531_ $$adS vacua in string theory
000190981 700__ $$uUniv Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany$$aCatino, Francesca
000190981 700__ $$0244581$$g181759$$aScrucca, Claudio A.
000190981 700__ $$aSmyth, Paul$$g218010$$0245736
000190981 773__ $$tJournal Of High Energy Physics$$k4
000190981 909C0 $$xU11777$$0252314$$pGR-SC
000190981 909CO $$pSB$$particle$$ooai:infoscience.tind.io:190981
000190981 937__ $$aEPFL-ARTICLE-190981
000190981 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000190981 980__ $$aARTICLE