Cargando…

Soft-Wall Stabilization

We propose a general class of five-dimensional soft-wall models with AdS metric near the ultraviolet brane and four-dimensional Poincar\'e invariance, where the infrared scale is determined dynamically. A large UV/IR hierarchy can be generated without any fine-tuning, thus solving the electrowe...

Descripción completa

Detalles Bibliográficos
Autores principales: Cabrer, Joan A, von Gersdorff, Gero, Quiros, Mariano
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: New J. Phys. 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1367-2630/12/7/075012
http://cds.cern.ch/record/1194889
_version_ 1780916859573370880
author Cabrer, Joan A
von Gersdorff, Gero
Quiros, Mariano
author_facet Cabrer, Joan A
von Gersdorff, Gero
Quiros, Mariano
author_sort Cabrer, Joan A
collection CERN
description We propose a general class of five-dimensional soft-wall models with AdS metric near the ultraviolet brane and four-dimensional Poincar\'e invariance, where the infrared scale is determined dynamically. A large UV/IR hierarchy can be generated without any fine-tuning, thus solving the electroweak/Planck scale hierarchy problem. Generically, the spectrum of fluctuations is discrete with a level spacing (mass gap) provided by the inverse length of the wall, similar to RS1 models with Standard Model fields propagating in the bulk. Moreover two particularly interesting cases arise. They can describe: (a) a theory with a continuous spectrum above the mass gap which can model unparticles corresponding to operators of a CFT where the conformal symmetry is broken by a mass gap, and; (b) a theory with a discrete spectrum provided by linear Regge trajectories as in AdS/QCD models.
format info:eu-repo/semantics/article
id cern-1194889
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
publisher New J. Phys.
record_format invenio
spelling cern-11948892019-09-30T06:29:59Z doi:10.1088/1367-2630/12/7/075012 http://cds.cern.ch/record/1194889 eng Cabrer, Joan A von Gersdorff, Gero Quiros, Mariano Soft-Wall Stabilization Particle Physics - Phenomenology We propose a general class of five-dimensional soft-wall models with AdS metric near the ultraviolet brane and four-dimensional Poincar\'e invariance, where the infrared scale is determined dynamically. A large UV/IR hierarchy can be generated without any fine-tuning, thus solving the electroweak/Planck scale hierarchy problem. Generically, the spectrum of fluctuations is discrete with a level spacing (mass gap) provided by the inverse length of the wall, similar to RS1 models with Standard Model fields propagating in the bulk. Moreover two particularly interesting cases arise. They can describe: (a) a theory with a continuous spectrum above the mass gap which can model unparticles corresponding to operators of a CFT where the conformal symmetry is broken by a mass gap, and; (b) a theory with a discrete spectrum provided by linear Regge trajectories as in AdS/QCD models. info:eu-repo/grantAgreement/EC/FP7/237920 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1194889 New J. Phys. New J. Phys., (2010) pp. 075012 2009-07-31
spellingShingle Particle Physics - Phenomenology
Cabrer, Joan A
von Gersdorff, Gero
Quiros, Mariano
Soft-Wall Stabilization
title Soft-Wall Stabilization
title_full Soft-Wall Stabilization
title_fullStr Soft-Wall Stabilization
title_full_unstemmed Soft-Wall Stabilization
title_short Soft-Wall Stabilization
title_sort soft-wall stabilization
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1367-2630/12/7/075012
http://cds.cern.ch/record/1194889
http://cds.cern.ch/record/1194889
work_keys_str_mv AT cabrerjoana softwallstabilization
AT vongersdorffgero softwallstabilization
AT quirosmariano softwallstabilization