On the Stabilization of the Size of Extra Dimensions

We derive a general formalism for constructing a four-dimensional effective action for the radion field in 5 dimensions, taking into account the possible dependence of the scale factor on the internal coordinate. First and second variations of the action with respect to the size of the extra dimensi...

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Detalles Bibliográficos
Autores principales: Kanti, Panagiota, Olive, Keith A., Pospelov, Maxim
Lenguaje:eng
Publicado: 2002
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(02)01959-7
http://cds.cern.ch/record/547517
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author Kanti, Panagiota
Olive, Keith A.
Pospelov, Maxim
author_facet Kanti, Panagiota
Olive, Keith A.
Pospelov, Maxim
author_sort Kanti, Panagiota
collection CERN
description We derive a general formalism for constructing a four-dimensional effective action for the radion field in 5 dimensions, taking into account the possible dependence of the scale factor on the internal coordinate. First and second variations of the action with respect to the size of the extra dimension reveals two types of algebraic constraints on the combination of brane and bulk Lagrangians that extremize the action, and provide an effective mass for the radion field. We derive a compact formula for the radion mass squared in terms of brane and bulk potentials for the case of a bulk scalar field. We further specialize these constraints for several, five-dimensional realizations of brane world models.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
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spelling cern-5475172023-03-14T18:03:01Zdoi:10.1016/S0370-2693(02)01959-7http://cds.cern.ch/record/547517engKanti, PanagiotaOlive, Keith A.Pospelov, MaximOn the Stabilization of the Size of Extra DimensionsParticle Physics - PhenomenologyWe derive a general formalism for constructing a four-dimensional effective action for the radion field in 5 dimensions, taking into account the possible dependence of the scale factor on the internal coordinate. First and second variations of the action with respect to the size of the extra dimension reveals two types of algebraic constraints on the combination of brane and bulk Lagrangians that extremize the action, and provide an effective mass for the radion field. We derive a compact formula for the radion mass squared in terms of brane and bulk potentials for the case of a bulk scalar field. We further specialize these constraints for several, five-dimensional realizations of brane world models.We derive a general formalism for constructing a four-dimensional effective action for the radion field in 5 dimensions, taking into account the possible dependence of the scale factor on the internal coordinate. First and second variations of the action with respect to the size of the extra dimension reveals two types of algebraic constraints on the combination of brane and bulk Lagrangians that extremize the action, and provide an effective mass for the radion field. We derive a compact formula for the radion mass squared in terms of brane and bulk potentials for the case of a bulk scalar field. We further specialize these constraints for several, five-dimensional realizations of brane world models.hep-ph/0204202CERN-TH-2002-071UMN-TH-2048-02TPI-MINN-02-08SUSX-TH-02-009CERN-TH-2002-071SUSX-TH-2002-009TPI-MINN-2002-08UMN-TH-2048oai:cds.cern.ch:5475172002-04-17
spellingShingle Particle Physics - Phenomenology
Kanti, Panagiota
Olive, Keith A.
Pospelov, Maxim
On the Stabilization of the Size of Extra Dimensions
title On the Stabilization of the Size of Extra Dimensions
title_full On the Stabilization of the Size of Extra Dimensions
title_fullStr On the Stabilization of the Size of Extra Dimensions
title_full_unstemmed On the Stabilization of the Size of Extra Dimensions
title_short On the Stabilization of the Size of Extra Dimensions
title_sort on the stabilization of the size of extra dimensions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(02)01959-7
http://cds.cern.ch/record/547517
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AT olivekeitha onthestabilizationofthesizeofextradimensions
AT pospelovmaxim onthestabilizationofthesizeofextradimensions

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