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The Minimal Volkov - Akulov - Starobinsky Supergravity
We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield $X$, which is subject however to the constraint $X^2=0$ so that it d...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2014
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2014.04.015 http://cds.cern.ch/record/1668687 |
_version_ | 1780935499455660032 |
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author | Antoniadis, I. Dudas, E. Ferrara, S. Sagnotti, A. |
author_facet | Antoniadis, I. Dudas, E. Ferrara, S. Sagnotti, A. |
author_sort | Antoniadis, I. |
collection | CERN |
description | We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield $X$, which is subject however to the constraint $X^2=0$ so that it describes only a Volkov - Akulov goldstino and an auxiliary field. We also construct the dual higher - derivative model, which rests on a chiral scalar curvature superfield ${\cal R}$ subject to the constraint ${\cal R}^2=0$, where the goldstino dual arises from the gauge - invariant gravitino field strength as $\gamma^{mn} {\cal D}_m \psi_n$. The final bosonic action is an $R+R^2$ theory involving an axial vector $A_m$ that only propagates a physical pseudoscalar mode. |
id | cern-1668687 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2014 |
record_format | invenio |
spelling | cern-16686872022-08-10T21:06:09Zdoi:10.1016/j.physletb.2014.04.015http://cds.cern.ch/record/1668687engAntoniadis, I.Dudas, E.Ferrara, S.Sagnotti, A.The Minimal Volkov - Akulov - Starobinsky SupergravityParticle Physics - TheoryWe construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield $X$, which is subject however to the constraint $X^2=0$ so that it describes only a Volkov - Akulov goldstino and an auxiliary field. We also construct the dual higher - derivative model, which rests on a chiral scalar curvature superfield ${\cal R}$ subject to the constraint ${\cal R}^2=0$, where the goldstino dual arises from the gauge - invariant gravitino field strength as $\gamma^{mn} {\cal D}_m \psi_n$. The final bosonic action is an $R+R^2$ theory involving an axial vector $A_m$ that only propagates a physical pseudoscalar mode.We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield X , which is subject however to the constraint X2=0 so that it describes only a Volkov–Akulov goldstino and an auxiliary field. We also construct the dual higher-derivative model, which rests on a chiral scalar curvature superfield R subject to the constraint R2=0 , where the goldstino dual arises from the gauge-invariant gravitino field strength as γmnDmψn . The final bosonic action is an R+R2 theory involving an axial vector Am that only propagates a physical pseudoscalar mode.We construct a supergravity model whose scalar degrees of freedom arise from a chiral superfield and are solely a scalaron and an axion that is very heavy during the inflationary phase. The model includes a second chiral superfield $X$, which is subject however to the constraint $X^2=0$ so that it describes only a Volkov - Akulov goldstino and an auxiliary field. We also construct the dual higher - derivative model, which rests on a chiral scalar curvature superfield ${\cal R}$ subject to the constraint ${\cal R}^2=0$, where the goldstino dual arises from the gauge - invariant gravitino field strength as $\gamma^{mn} {\cal D}_m \psi_n$. The final bosonic action is an $R+R^2$ theory involving an axial vector $A_m$ that only propagates a physical pseudoscalar mode.arXiv:1403.3269CERN-PH-TH-2014-040CPHT-RR010.0314CERN-PH-TH-2014-040CPHT-RR010.0314oai:cds.cern.ch:16686872014-03-13 |
spellingShingle | Particle Physics - Theory Antoniadis, I. Dudas, E. Ferrara, S. Sagnotti, A. The Minimal Volkov - Akulov - Starobinsky Supergravity |
title | The Minimal Volkov - Akulov - Starobinsky Supergravity |
title_full | The Minimal Volkov - Akulov - Starobinsky Supergravity |
title_fullStr | The Minimal Volkov - Akulov - Starobinsky Supergravity |
title_full_unstemmed | The Minimal Volkov - Akulov - Starobinsky Supergravity |
title_short | The Minimal Volkov - Akulov - Starobinsky Supergravity |
title_sort | minimal volkov - akulov - starobinsky supergravity |
topic | Particle Physics - Theory |
url | https://dx.doi.org/10.1016/j.physletb.2014.04.015 http://cds.cern.ch/record/1668687 |
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