Early universe constraints on time variation of fundamental constants

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We study the time variation of fundamental constants in the early Universe. Using data from primordial light nuclei abundances, cosmic microwave background, and the 2dFGRS power spectrum, we put constraints on the time variation of the fine structure constant {alpha} and the Higgs vacuum expectation...

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Autores principales: Landau, Susana J., Mosquera, Mercedes Elisa, Scóccola, Claudia Graciela, Vucetich, Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Astronómicas
Physics
Big bang nucleosynthesis
Spectral density
Cosmic microwave background
Time-variation of fundamental constants
Fine-structure constant
Theoretical physics
Astrophysics
Cosmic background radiation
Vacuum expectation value
Universe
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125923
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125923
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
Physics
Big bang nucleosynthesis
Spectral density
Cosmic microwave background
Time-variation of fundamental constants
Fine-structure constant
Theoretical physics
Astrophysics
Cosmic background radiation
Vacuum expectation value
Universe
spellingShingle Ciencias Astronómicas
Physics
Big bang nucleosynthesis
Spectral density
Cosmic microwave background
Time-variation of fundamental constants
Fine-structure constant
Theoretical physics
Astrophysics
Cosmic background radiation
Vacuum expectation value
Universe
Landau, Susana J.
Mosquera, Mercedes Elisa
Scóccola, Claudia Graciela
Vucetich, Héctor
Early universe constraints on time variation of fundamental constants
topic_facet Ciencias Astronómicas
Physics
Big bang nucleosynthesis
Spectral density
Cosmic microwave background
Time-variation of fundamental constants
Fine-structure constant
Theoretical physics
Astrophysics
Cosmic background radiation
Vacuum expectation value
Universe
description We study the time variation of fundamental constants in the early Universe. Using data from primordial light nuclei abundances, cosmic microwave background, and the 2dFGRS power spectrum, we put constraints on the time variation of the fine structure constant {alpha} and the Higgs vacuum expectation value without assuming any theoretical framework. A variation in leads to a variation in the electron mass, among other effects. Along the same line, we study the variation of {alpha} and the electron mass m{sub e}. In a purely phenomenological fashion, we derive a relationship between both variations.
format Articulo
Articulo
author Landau, Susana J.
Mosquera, Mercedes Elisa
Scóccola, Claudia Graciela
Vucetich, Héctor
author_facet Landau, Susana J.
Mosquera, Mercedes Elisa
Scóccola, Claudia Graciela
Vucetich, Héctor
author_sort Landau, Susana J.
title Early universe constraints on time variation of fundamental constants
title_short Early universe constraints on time variation of fundamental constants
title_full Early universe constraints on time variation of fundamental constants
title_fullStr Early universe constraints on time variation of fundamental constants
title_full_unstemmed Early universe constraints on time variation of fundamental constants
title_sort early universe constraints on time variation of fundamental constants
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/125923
work_keys_str_mv AT landaususanaj earlyuniverseconstraintsontimevariationoffundamentalconstants
AT mosqueramercedeselisa earlyuniverseconstraintsontimevariationoffundamentalconstants
AT scoccolaclaudiagraciela earlyuniverseconstraintsontimevariationoffundamentalconstants
AT vucetichhector earlyuniverseconstraintsontimevariationoffundamentalconstants
bdutipo_str Repositorios
_version_ 1764820452494016513

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