Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension

We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-fr...

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Detalles Bibliográficos
Autores principales: de Rham, Claudia, Dvali, Gia, Hofmann, Stefan, Khoury, Justin, Pujolas, Oriol, Redi, Michele, Tolley, Andrew J.
Lenguaje:eng
Publicado: 2007
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.100.251603
http://cds.cern.ch/record/1069227
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author de Rham, Claudia
Dvali, Gia
Hofmann, Stefan
Khoury, Justin
Pujolas, Oriol
Redi, Michele
Tolley, Andrew J.
author_facet de Rham, Claudia
Dvali, Gia
Hofmann, Stefan
Khoury, Justin
Pujolas, Oriol
Redi, Michele
Tolley, Andrew J.
author_sort de Rham, Claudia
collection CERN
description We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-free if the tension on the 3-brane is larger than a certain critical value, while the induced metric remains flat. The gravitational force law `cascades' from a 6D behavior at the largest distances followed by a 5D and finally a 4D regime at the shortest scales.
id cern-1069227
institution Organización Europea para la Investigación Nuclear
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publishDate 2007
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spelling cern-10692272023-07-11T03:58:35Zdoi:10.1103/PhysRevLett.100.251603http://cds.cern.ch/record/1069227engde Rham, ClaudiaDvali, GiaHofmann, StefanKhoury, JustinPujolas, OriolRedi, MicheleTolley, Andrew J.Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher DimensionParticle Physics - TheoryWe present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-free if the tension on the 3-brane is larger than a certain critical value, while the induced metric remains flat. The gravitational force law `cascades' from a 6D behavior at the largest distances followed by a 5D and finally a 4D regime at the shortest scales.We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-free if the tension on the 3-brane is larger than a certain critical value, while the induced metric remains flat. The gravitational force law `cascades' from a 6D behavior at the largest distances followed by a 5D and finally a 4D regime at the shortest scales.arXiv:0711.2072oai:cds.cern.ch:10692272007-11-15
spellingShingle Particle Physics - Theory
de Rham, Claudia
Dvali, Gia
Hofmann, Stefan
Khoury, Justin
Pujolas, Oriol
Redi, Michele
Tolley, Andrew J.
Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title_full Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title_fullStr Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title_full_unstemmed Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title_short Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
title_sort cascading gravity: extending the dvali-gabadadze-porrati model to higher dimension
topic Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevLett.100.251603
http://cds.cern.ch/record/1069227
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