Inflation from supersymmetry breaking

Antoniadis, Ignatios (19 September 2019). Inflation from supersymmetry breaking. PoS - proceedings of science, 347. Trieste, Italy: Scuola Internazionale Superiore di Studi Avanzati SISSA 10.22323/1.347.0055

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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.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Antoniadis, Ignatios

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

05 Nov 2019 11:15

Last Modified:

05 Nov 2019 11:15

Publisher DOI:

10.22323/1.347.0055

BORIS DOI:

10.7892/boris.134173

URI:

https://boris.unibe.ch/id/eprint/134173

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