On Dynamical Adjustment Mechanisms for the Cosmological Constant

After recalling why dynamical adjustment mechanisms represent a particularly attractive possibility for solving the cosmological constant problem, we briefly discuss their intrinsic difficulties as summarized in Weinberg's no-go theorem. We then comment on some problems of the recently proposed...

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Detalles Bibliográficos
Autor principal: Hebecker, Arthur
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/502032
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author Hebecker, Arthur
author_facet Hebecker, Arthur
author_sort Hebecker, Arthur
collection CERN
description After recalling why dynamical adjustment mechanisms represent a particularly attractive possibility for solving the cosmological constant problem, we briefly discuss their intrinsic difficulties as summarized in Weinberg's no-go theorem. We then comment on some problems of the recently proposed `self-tuning' mechanism in 4+1 dimensions. Finally, we describe an alternative approach which uses the time-evolution of the universe to achieve a dynamical relaxation of the cosmological constant to zero.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-5020322023-03-14T17:02:28Zhttp://cds.cern.ch/record/502032engHebecker, ArthurOn Dynamical Adjustment Mechanisms for the Cosmological ConstantParticle Physics - PhenomenologyAfter recalling why dynamical adjustment mechanisms represent a particularly attractive possibility for solving the cosmological constant problem, we briefly discuss their intrinsic difficulties as summarized in Weinberg's no-go theorem. We then comment on some problems of the recently proposed `self-tuning' mechanism in 4+1 dimensions. Finally, we describe an alternative approach which uses the time-evolution of the universe to achieve a dynamical relaxation of the cosmological constant to zero.After recalling why dynamical adjustment mechanisms represent a particularly attractive possibility for solving the cosmological constant problem, we briefly discuss their intrinsic difficulties as summarized in Weinberg's no-go theorem. We then comment on some problems of the recently proposed `self-tuning' mechanism in 4+1 dimensions. Finally, we describe an alternative approach which uses the time-evolution of the universe to achieve a dynamical relaxation of the cosmological constant to zero.hep-ph/0105315oai:cds.cern.ch:5020322001-05-30
spellingShingle Particle Physics - Phenomenology
Hebecker, Arthur
On Dynamical Adjustment Mechanisms for the Cosmological Constant
title On Dynamical Adjustment Mechanisms for the Cosmological Constant
title_full On Dynamical Adjustment Mechanisms for the Cosmological Constant
title_fullStr On Dynamical Adjustment Mechanisms for the Cosmological Constant
title_full_unstemmed On Dynamical Adjustment Mechanisms for the Cosmological Constant
title_short On Dynamical Adjustment Mechanisms for the Cosmological Constant
title_sort on dynamical adjustment mechanisms for the cosmological constant
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/502032
work_keys_str_mv AT hebeckerarthur ondynamicaladjustmentmechanismsforthecosmologicalconstant

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