Time variation of fundamental constants in nonstandard cosmological models

MOSQUERA, M. E.; CIVITARESE, O.

PHYS. REV. - C

AMER PHYSICAL SOC

Lugar: New York; Año: 2017 vol. 96 p. 45802 - 45805

0556-2813

In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by usingthe public code ALTERBBN , we have included in the computation of the primordial light nuclei abundances, theeffects of the inclusion of dark energy and dark entropy, along with the variation of the fine structure constantand the Higgs vacuum expectation value. In order to set constrains on the variation of the fundamental constantswe have compared our theoretical results with the available observational data. We have found that the lithiumabundance is reduced for not-null variation at the 3σ -level of both constants.