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

dc.creatorScóccola, Claudia Graciela
dc.creatorMosquera, Mercedes Elisa
dc.creatorLandau, Susana Judith
dc.creatorVucetich, Héctor
dc.date2008
dc.date2019-10-28T13:28:25Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/84151
dc.identifierissn:0004-637X
dc.descriptionWe 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.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.descriptionInstituto de Astrofísica de La Plata
dc.formatapplication/pdf
dc.format737-746
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Astronómicas
dc.subjectCosmic microwave background
dc.subjectCosmology: Theory
dc.subjectEarly universe
dc.titleTime variation of the electron mass in the early universe and the Barrow-Magueijo model
dc.typeArticulo
dc.typeArticulo


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