Inflation with racetrack superpotential and matter field

doi:https://doi.org/10.1088/1475-7516/2010/02/026

Title: Inflation with racetrack superpotential and matter field

Full Record
Other Related Research

Abstract

Several models of inflation with the racetrack superpotential for the volume modulus coupled to a matter field are investigated. In particular, it is shown that two classes of racetrack inflation models, saddle point and inflection point ones, can be constructed in a fully supersymmetric framework with the matter field F-term as a source of supersymmetry breaking and uplifting. Two models of F-term supersymmetry breaking are considered: the Polonyi model and the quantum corrected O'Raifeartaigh model. In the former case, both classes of racetrack inflation models differ significantly from the corresponding models with non-supersymmetric uplifting. The main difference is a quite strong dominance of the inflaton by the matter field. In addition, fine-tuning of the parameters is relaxed as compared to the original racetrack models. In the case of the racetrack inflation models coupled to the O'Raifeartaigh model, the matter field is approximately decoupled from the inflationary dynamics. In all of the above models the gravitino mass is larger than the Hubble scale during inflation. The possibility of having the gravitino much lighter than the Hubble scale is also investigated. It is very hard to construct models with light gravitino in which the volume modulus dominates inflation. On the other hand,more »« less

Authors:

Badziak, Marcin; Olechowski, Marek ^[1]

Institute of Theoretical Physics, University of Warsaw, ul. Hoża 69, PL-00-681 Warsaw (Poland)

Publication Date:: 2010-02-01

OSTI Identifier:: 22272992

Resource Type:: Journal Article

Journal Name:: Journal of Cosmology and Astroparticle Physics

Additional Journal Information:: Journal Volume: 2010; Journal Issue: 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516

Country of Publication:: United States

Language:: English

Subject:: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; APPROXIMATIONS; COMPARATIVE EVALUATIONS; COSMOLOGY; INFLATIONARY UNIVERSE; MASS; POTENTIALS; SUPERSYMMETRY; SYMMETRY BREAKING; VISIBLE RADIATION

Citation Formats


                    Badziak, Marcin, and Olechowski, Marek. Inflation with racetrack superpotential and matter field.  United States: N. p., 2010. 
        Web.  doi:10.1088/1475-7516/2010/02/026.

Copy to clipboard


                    Badziak, Marcin, & Olechowski, Marek. Inflation with racetrack superpotential and matter field.  United States.  https://doi.org/10.1088/1475-7516/2010/02/026

Copy to clipboard


                    Badziak, Marcin, and Olechowski, Marek. Mon .  
        "Inflation with racetrack superpotential and matter field".  United States.  https://doi.org/10.1088/1475-7516/2010/02/026.

Copy to clipboard


                    
@article{osti_22272992,

  title        = {Inflation with racetrack superpotential and matter field},

  author       = {Badziak, Marcin and Olechowski, Marek},

  abstractNote = {Several models of inflation with the racetrack superpotential for the volume modulus coupled to a matter field are investigated. In particular, it is shown that two classes of racetrack inflation models, saddle point and inflection point ones, can be constructed in a fully supersymmetric framework with the matter field F-term as a source of supersymmetry breaking and uplifting. Two models of F-term supersymmetry breaking are considered: the Polonyi model and the quantum corrected O'Raifeartaigh model. In the former case, both classes of racetrack inflation models differ significantly from the corresponding models with non-supersymmetric uplifting. The main difference is a quite strong dominance of the inflaton by the matter field. In addition, fine-tuning of the parameters is relaxed as compared to the original racetrack models. In the case of the racetrack inflation models coupled to the O'Raifeartaigh model, the matter field is approximately decoupled from the inflationary dynamics. In all of the above models the gravitino mass is larger than the Hubble scale during inflation. The possibility of having the gravitino much lighter than the Hubble scale is also investigated. It is very hard to construct models with light gravitino in which the volume modulus dominates inflation. On the other hand, models in which the inflationary dynamics is dominated by the matter field are relatively simple and seem to be more natural.},

  doi          = {10.1088/1475-7516/2010/02/026},

  url          = {https://www.osti.gov/biblio/22272992},
  journal      = {Journal of Cosmology and Astroparticle Physics},

  issn         = {1475-7516},

  number       = 02,

  volume       = 2010,

  place        = {United States},

  year         = {2010},

  month        = {2}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1088/1475-7516/2010/02/026

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Low-scale inflation and supersymmetry breaking in racetrack models

Journal Article Allahverdi, Rouzbeh ; Dutta, Bhaskar ; Sinha, Kuver - Physical Review. D, Particles Fields

In many moduli stabilization schemes in string theory, the scale of inflation appears to be of the same order as the scale of supersymmetry breaking. For low-scale supersymmetry breaking, therefore, the scale of inflation should also be low, unless this correlation is avoided in specific models. We explore such a low-scale inflationary scenario in a racetrack model with a single modulus in type IIB string theory. Inflation occurs near a point of inflection in the Kaehler modulus potential. Obtaining acceptable cosmological density perturbations leads to the introduction of magnetized D7-branes sourcing nonperturbative superpotentials. The gravitino mass, m{sub 3/2}, is chosenmore »« less
https://doi.org/10.1103/PHYSREVD.81.083538
Volume modulus inflection point inflation and the gravitino mass problem

Journal Article Badziak, Marcin ; Olechowski, Marek - Journal of Cosmology and Astroparticle Physics

Several models of inflection point inflation with the volume modulus as the inflaton are investigated. Non-perturbative superpotentials containing two gaugino condensation terms or one such term with threshold corrections are considered. It is shown that the gravitino mass may be much smaller than the Hubble scale during inflation if at least one of the non-perturbative terms has a positive exponent. Higher order corrections to the Kaehler potential have to be taken into account in such models. Those corrections are used to stabilize the potential in the axion direction in the vicinity of the inflection point. Models with only negative exponentsmore »« less
https://doi.org/10.1088/1475-7516/2009/02/010
Consistent cosmology with Higgs thermal inflation in a minimal extension of the MSSM

Journal Article Hindmarsh, Mark ; Jones, D.R. Timothy, - Journal of Cosmology and Astroparticle Physics

We consider a class of supersymmetric inflation models, in which minimal gauged F-term hybrid inflation is coupled renormalisably to the minimal supersymmetric standard model (MSSM), with no extra ingredients; we call this class the ''minimal hybrid inflationary supersymmetric standard model'' (MHISSM). The singlet inflaton couples to the Higgs as well as the waterfall fields, supplying the Higgs μ-term. We show how such models can exit inflation to a vacuum characterised by large Higgs vevs, whose vacuum energy is controlled by supersymmetry-breaking. The true ground state is reached after an intervening period of thermal inflation along the Higgs flat direction, whichmore »« less
https://doi.org/10.1088/1475-7516/2013/03/021
Inflation on an Open Racetrack

Journal Article Chen, Heng-Yu ; /Wisconsin U., Madison ; Hung, Ling-Yan ; ... - Journal of High Energy Physics (Online)

We present a variant of warped D-brane inflation by incorporating multiple sets of holomorphically - embedded D7-branes involved in moduli stabilization with extent into a warped throat. The resultant D3-brane motion depends on the D7-brane configuration and the relative position of the D3-brane in these backgrounds. The non-perturbative moduli stabilization superpotential takes the racetrack form, but the additional D3-brane open string moduli dependence provides more flexibilities in model building. For concreteness, we consider D3-brane motion in the warped deformed conifold with the presence of multiple D7-branes, and derive the scalar potential valid for the entire throat. By explicit tuning ofmore »« less
Full Text Available
Microscopic origin of volume modulus inflation

Journal Article Cicoli, Michele ; Dipartimento di Fisica e Astronomia, Università di Bologna, via Irnerio 46, 40126 Bologna ; INFN, Sezione di Bologna, via Irnerio 46, 40126 Bologna ; ... - Journal of Cosmology and Astroparticle Physics

High-scale string inflationary models are in well-known tension with low-energy supersymmetry. A promising solution involves models where the inflaton is the volume of the extra dimensions so that the gravitino mass relaxes from large values during inflation to smaller values today. We describe a possible microscopic origin of the scalar potential of volume modulus inflation by exploiting non-perturbative effects, string loop and higher derivative perturbative corrections to the supergravity effective action together with contributions from anti-branes and charged hidden matter fields. We also analyse the relation between the size of the flux superpotential and the position of the late-time minimummore »« less
https://doi.org/10.1088/1475-7516/2015/12/040

Similar Records