Time variation of the electron mass in the early universe and the Barrow-Magueijo model

We put limits on the time variation of the electron mass in the early universe using observational primordial abundances of D, <SUP>4</SUP>He, and <SUP>7</SUP>Li, recent data from the cosmic microwave background, and the 2dFGRS power spectrum. Furthermore, we use these constr...

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Autores principales: Scóccola, Claudia Graciela, Mosquera, Mercedes Elisa, Landau, Susana Judith, Vucetich, Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Astronómicas
Cosmic microwave background
Cosmology: Theory
Early universe
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84151
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84151
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
Cosmic microwave background
Cosmology: Theory
Early universe
spellingShingle Ciencias Astronómicas
Cosmic microwave background
Cosmology: Theory
Early universe
Scóccola, Claudia Graciela
Mosquera, Mercedes Elisa
Landau, Susana Judith
Vucetich, Héctor
Time variation of the electron mass in the early universe and the Barrow-Magueijo model
topic_facet Ciencias Astronómicas
Cosmic microwave background
Cosmology: Theory
Early universe
description We put limits on the time variation of the electron mass in the early universe using observational primordial abundances of D, <SUP>4</SUP>He, and <SUP>7</SUP>Li, recent data from the cosmic microwave background, and the 2dFGRS power spectrum. Furthermore, we use these constraints together with other astronomical and geophysical bounds from the late universe to test the Barrow-Magueijo model for the variation in m<SUB>e</SUB>. From our analysis we obtain -0.615 < Gω/c<SUP>4</SUP> < -0.045 (3 σ interval), in disagreement with the result obtained in the original paper.
format Articulo
Articulo
author Scóccola, Claudia Graciela
Mosquera, Mercedes Elisa
Landau, Susana Judith
Vucetich, Héctor
author_facet Scóccola, Claudia Graciela
Mosquera, Mercedes Elisa
Landau, Susana Judith
Vucetich, Héctor
author_sort Scóccola, Claudia Graciela
title Time variation of the electron mass in the early universe and the Barrow-Magueijo model
title_short Time variation of the electron mass in the early universe and the Barrow-Magueijo model
title_full Time variation of the electron mass in the early universe and the Barrow-Magueijo model
title_fullStr Time variation of the electron mass in the early universe and the Barrow-Magueijo model
title_full_unstemmed Time variation of the electron mass in the early universe and the Barrow-Magueijo model
title_sort time variation of the electron mass in the early universe and the barrow-magueijo model
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/84151
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AT landaususanajudith timevariationoftheelectronmassintheearlyuniverseandthebarrowmagueijomodel
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