Unified no-scale attractors
Abstract
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 perturbations. In particular, we have shown how this scenario can be unified with modulus fixing, supersymmetry breaking and a small cosmological constant. In this study we extend these constructions to inflationary models based on generalized no-scale structures. In particular, we consider alternative values of the curvature parameter, α < 1, as may occur if not all the complex Kähler moduli contribute to driving inflation, as well as α > 1, as may occur if complex structure moduli also contribute to driving inflation. In all cases, we combine these α-Starobinsky inflation models with supersymmetry breaking and a present-day cosmological constant, allowing for additional contributions to the vacuum energy from stages of gauge symmetry breaking.
- Authors:
-
- King's College, London (United Kingdom); European Organization for Nuclear Research (CERN), Geneva (Switzerland); NICPB, Tallinn (Estonia)
- Texas A & M Univ., College Station, TX (United States); Houston Advanced Research Center (HARC), Woodlands, TX (United States); Academy of Athens (Greece)
- Univ. of Minnesota, Minneapolis, MN (United States)
- Publication Date:
- Research Org.:
- Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1837577
- Grant/Contract Number:
- SC0011842; FG02-13ER42020
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Cosmology and Astroparticle Physics
- Additional Journal Information:
- Journal Volume: 2019; Journal Issue: 09; Journal ID: ISSN 1475-7516
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS; inflation; supersymmetry and cosmology
Citation Formats
Ellis, John, Nanopoulos, Dimitri V., Olive, Keith A., and Verner, Sarunas. Unified no-scale attractors. United States: N. p., 2019.
Web. doi:10.1088/1475-7516/2019/09/040.
Ellis, John, Nanopoulos, Dimitri V., Olive, Keith A., & Verner, Sarunas. Unified no-scale attractors. United States. https://doi.org/10.1088/1475-7516/2019/09/040
Ellis, John, Nanopoulos, Dimitri V., Olive, Keith A., and Verner, Sarunas. Fri .
"Unified no-scale attractors". United States. https://doi.org/10.1088/1475-7516/2019/09/040. https://www.osti.gov/servlets/purl/1837577.
@article{osti_1837577,
title = {Unified no-scale attractors},
author = {Ellis, John and Nanopoulos, Dimitri V. and Olive, Keith A. and Verner, Sarunas},
abstractNote = {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 perturbations. In particular, we have shown how this scenario can be unified with modulus fixing, supersymmetry breaking and a small cosmological constant. In this study we extend these constructions to inflationary models based on generalized no-scale structures. In particular, we consider alternative values of the curvature parameter, α < 1, as may occur if not all the complex Kähler moduli contribute to driving inflation, as well as α > 1, as may occur if complex structure moduli also contribute to driving inflation. In all cases, we combine these α-Starobinsky inflation models with supersymmetry breaking and a present-day cosmological constant, allowing for additional contributions to the vacuum energy from stages of gauge symmetry breaking.},
doi = {10.1088/1475-7516/2019/09/040},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 09,
volume = 2019,
place = {United States},
year = {Fri Sep 20 00:00:00 EDT 2019},
month = {Fri Sep 20 00:00:00 EDT 2019}
}
Web of Science
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