Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He

Aims. We calculate the constraints on the time variation of the Higgs vacuum expectation value from Big Bang Nucleosynthesis. Methods. Starting from the calculation of the deuterium binding-energy, as a function of the pion-mass and using the NN-Reid 93 potential, we calculate the abundances of prim...

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Detalles Bibliográficos
Autores principales: Mosquera, Mercedes Elisa, Civitarese, Enrique Osvaldo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Astronómicas
cosmological parameters
cosmology: theory
primordial nucleosynthesis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82505
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82505
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
cosmological parameters
cosmology: theory
primordial nucleosynthesis
spellingShingle Ciencias Astronómicas
cosmological parameters
cosmology: theory
primordial nucleosynthesis
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
topic_facet Ciencias Astronómicas
cosmological parameters
cosmology: theory
primordial nucleosynthesis
description Aims. We calculate the constraints on the time variation of the Higgs vacuum expectation value from Big Bang Nucleosynthesis. Methods. Starting from the calculation of the deuterium binding-energy, as a function of the pion-mass and using the NN-Reid 93 potential, we calculate the abundances of primordial D and 4He by modifying Kawano's code. The Higgs vacuum expectation value (v) and the baryon to photon ratio (ηB) enter the calculation as free parameters. By using the observational data of D and 4He, we set constraints on ηB and on the variation of v, relative to a constant value of ΛQCD. Results. Results are consistent with null variation in v and € D for the early universe, within 6σ. Conclusions. We obtained a linear dependence of € D upon v and found that the best-fit-value of the variation of v is null within 6σ.
format Articulo
Articulo
author Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_facet Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_sort Mosquera, Mercedes Elisa
title Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
title_short Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
title_full Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
title_fullStr Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
title_full_unstemmed Effect of the variation of the Higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of D and 4He
title_sort effect of the variation of the higgs vacuum expectation value upon the deuterium binding energy and primordial abundances of d and 4he
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/82505
work_keys_str_mv AT mosqueramercedeselisa effectofthevariationofthehiggsvacuumexpectationvalueuponthedeuteriumbindingenergyandprimordialabundancesofdand4he
AT civitareseenriqueosvaldo effectofthevariationofthehiggsvacuumexpectationvalueuponthedeuteriumbindingenergyandprimordialabundancesofdand4he
bdutipo_str Repositorios
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