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

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dc.creatorScóccola, Claudia G.
dc.creatorMosquera, Mercedes E.
dc.creatorLandau, Susana J.
dc.creatorVucetich, Héctor
dc.date2008-03-03
dc.date.accessioned2026-07-07T10:05:34Z
dc.date.available2026-07-07T10:05:34Z
dc.descriptionWe put limits on the time variation of the electron mass in the early universe using observational primordial abundances of D, He4 and Li7, 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 Barrow-Magueijo's model for the variation in m_e. From our analysis we obtain -0.615 < Gω/c^4 < -0.045 (3σinterval) in disagreement with the result obtained in the original paper.
dc.descriptionAccepted for publication in ApJ
dc.identifierhttps://arxiv.org/abs/0803.0247
dc.identifierhttp://arxiv.org/abs/0803.0247
dc.identifierThe Astrophysical Journal, Volume 681, Issue 2, pp. 737-746 (2008)
dc.identifierdoi:10.1086/588086
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170045
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTime variation of the electron mass in the early universe and the Barrow-Magueijo model
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