Communication Dans Un Congrès Année : 2019

Inflation From Supersymmetry Breaking

Résumé

I discuss a general class of models where the inflation is driven by supersymmetry breaking with the superpartner of the goldstino (sgoldstino) playing the role of the inflaton. Imposing an R-symmetry allows to satisfy easily the slow-roll conditions, avoiding the so-called η-problem, and leads to two different classes of small field inflation models; they are characterised by an inflationary plateau around the maximum of the scalar potential, where R-symmetry is either restored or spontaneously broken, with the inflaton rolling down to a minimum describing the present phase of our Universe. Inflation can be driven by either an F- or a D-term, while the minimum has a positive tuneable vacuum energy. The models agree with cosmological observations and in the simplest case predict a tensor-to-scalar ratio of primordial perturbations 10−9 <∼ r <∼ 10−4 and an inflation scale 1010 GeV <∼ H∗ <∼ 1012 GeV.

Dates et versions

hal-02016971 , version 1 (13-02-2019)

Identifiants

Citer

I. Antoniadis. Inflation From Supersymmetry Breaking. 7th International Conference on New Frontiers in Physics, Jul 2018, Kolymbari, Greece. pp.30, ⟨10.3390/universe5010030⟩. ⟨hal-02016971⟩
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