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) |
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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: |
21 Jan 2024 13:47 |
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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