Bekenstein model and the time variation of the strong coupling constant

We propose to generalize Bekenstein model for the time variation of the fine structure "constant" αem to QCD strong coupling constant αS. We find that, except for a “fine tuned” choice of the free parameters, the extension can not be performed trivially without being in conflict with exper...

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Detalles Bibliográficos
Autores principales: Chamoun, Nidal, Landau, Susana Judith, Vucetich, Héctor
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2001
Materias:
Ciencias Astronómicas
fundamental constants; elementary particles processes; cosmology
astrofísica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/2051
http://arxiv.org/pdf/astro-ph/0008436v3.pdf
http://www.sciencedirect.com/science/article/pii/S0370269301002933
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-2051
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
fundamental constants; elementary particles processes; cosmology
astrofísica
spellingShingle Ciencias Astronómicas
fundamental constants; elementary particles processes; cosmology
astrofísica
Chamoun, Nidal
Landau, Susana Judith
Vucetich, Héctor
Bekenstein model and the time variation of the strong coupling constant
topic_facet Ciencias Astronómicas
fundamental constants; elementary particles processes; cosmology
astrofísica
description We propose to generalize Bekenstein model for the time variation of the fine structure "constant" αem to QCD strong coupling constant αS. We find that, except for a “fine tuned” choice of the free parameters, the extension can not be performed trivially without being in conflict with experimental constraints and this rules out αS variability. This is due largely to the huge numerical value of the QCD vacuum gluon condensate when compared to the matter density of the universe.
format Articulo
Preprint
author Chamoun, Nidal
Landau, Susana Judith
Vucetich, Héctor
author_facet Chamoun, Nidal
Landau, Susana Judith
Vucetich, Héctor
author_sort Chamoun, Nidal
title Bekenstein model and the time variation of the strong coupling constant
title_short Bekenstein model and the time variation of the strong coupling constant
title_full Bekenstein model and the time variation of the strong coupling constant
title_fullStr Bekenstein model and the time variation of the strong coupling constant
title_full_unstemmed Bekenstein model and the time variation of the strong coupling constant
title_sort bekenstein model and the time variation of the strong coupling constant
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/2051
http://arxiv.org/pdf/astro-ph/0008436v3.pdf
http://www.sciencedirect.com/science/article/pii/S0370269301002933
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AT landaususanajudith bekensteinmodelandthetimevariationofthestrongcouplingconstant
AT vucetichhector bekensteinmodelandthetimevariationofthestrongcouplingconstant
bdutipo_str Repositorios
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