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Article Dans Une Revue Eur.Phys.J.C Année : 2018

The cosmological constant in Supergravity

Auttakit Chatrabhuti
  • Fonction : Auteur
Hiroshi Isono
  • Fonction : Auteur
Rob Knoops
  • Fonction : Auteur

Résumé

We propose a supersymmetrisation of the cosmological constant in ordinary $N=1$ supergravity that breaks supersymmetry spontaneously by a constant Fayet-Iliopoulos (FI) term associated to a U(1) symmetry. This term is a variation of a new gauge invariant FI term proposed recently, which is invariant under Kähler transformations and can be written even for a gauged R-symmetry on top of the standard FI contribution. The two terms are the same in the absence of matter but differ in its presence. The proposed term is reduced to a constant FI-term up to fermion interactions that disappear in the unitary gauge in the absence of any F-term supersymmetry breaking. The constant FI term leads to a positive cosmological constant, uplifting the vacuum energy from the usual anti-de Sitter supergravity to any higher value.

Dates et versions

hal-01797108 , version 1 (22-05-2018)

Identifiants

Citer

Ignatios Antoniadis, Auttakit Chatrabhuti, Hiroshi Isono, Rob Knoops. The cosmological constant in Supergravity. Eur.Phys.J.C, 2018, 78 (9), pp.718. ⟨10.1140/epjc/s10052-018-6175-4⟩. ⟨hal-01797108⟩
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