# Phenomenological aspects of no-scale inflation models

@article{Ellis2015PhenomenologicalAO, title={Phenomenological aspects of no-scale inflation models}, author={John Ellis and Marcos A. G. Gar{\'c}ıa and Dimitri V. Nanopoulos and Keith A. Olive}, journal={Journal of Cosmology and Astroparticle Physics}, year={2015}, volume={2015}, pages={003 - 003} }

We discuss phenomenological aspects of inflationary models wiith a no-scale supergravity Kähler potential motivated by compactified string models, in which the inflaton may be identified either as a Kähler modulus or an untwisted matter field, focusing on models that make predictions for the scalar spectral index ns and the tensor-to-scalar ratio r that are similar to the Starobinsky model. We discuss possible patterns of soft supersymmetry breaking, exhibiting examples of the pure no-scale…

## 29 Citations

Inflation and leptogenesis in high-scale supersymmetry

- PhysicsPhysical Review D
- 2020

No-scale supergravity provides a successful framework for Starobinsky-like inflation models. Two classes of models can be distinguished depending on the identification of the inflaton with the volume…

Phenomenology and cosmology of no-scale attractor models of inflation

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

We have recently proposed attractor models for modulus fixing, inflation, supersymmetry breaking and dark energy based on no-scale supergravity. In this paper we develop phenomenological and…

Calculations of inflaton decays and reheating: with applications to no-scale inflation models

- Physics
- 2015

We discuss inflaton decays and reheating in no-scale Starobinsky-like models of inflation, calculating the effective equation-of-state parameter, w, during the epoch of inflaton decay, the reheating…

Unified no-scale attractors

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

We have presented previously a general treatment of Starobinsky-like inflation in no-scale supergravity where the tensor-to-scalar ratio r = 3(1 − ns)2, and ns is the tilt of the scalar…

α-attractors from supersymmetry breaking

- Physics
- 2021

We construct new models of inflation and spontaneous supersymmetry breaking in de Sitter vacuum, with a single chiral superfield, where inflaton is the superpartner of the goldstino. Our approach is…

No-scale inflation

- Physics
- 2015

Supersymmetry is the most natural framework for physics above the TeV scale, and the corresponding framework for early-Universe cosmology, including inflation, is supergravity. No-scale supergravity…

Gravitational Waves, μ Term and Leptogenesis from B − L Higgs Inflation in Supergravity

- Physics
- 2018

We consider a renormalizable extension of the minimal supersymmetric standard model endowed by an R and a gauged B − L symmetry. The model incorporates chaotic inflation driven by a quartic…

Building models of inflation in no-scale supergravity

- Physics
- 2020

After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. We then show how to…

Non-oscillatory no-scale inflation

- Physics
- 2020

We propose a non-oscillatory no-scale supergravity model of inflation (NO-NO inflation) in which the inflaton does not oscillate at the end of the inflationary era. Instead, the Universe is then…

Moduli backreaction and supersymmetry breaking in string-inspired inflation models

- Geology
- 2015

A bstractWe emphasize the importance of effects from heavy fields on supergravity models of inflation. We study, in particular, the backreaction of stabilizer fields and geometric moduli in the…

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