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Time variation of fundamental constants in nonstandard cosmological models
(American Physical Society, 2017-10)
In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code alterbbn, we have included in the computation of the primordial light nuclei abundances, the ...
New cosmological constraints on the variation of fundamental constants: the fine structure constant and the Higgs vacuum expectation value
(EDP Sciences, 2013-03)
Aims: We study the time variation of the fine structure constant, α, and the Higgs vacuum expectation value v, during the Big Bang nucleosynthesis (BBN). Methods: We computed primordial abundances of light nuclei produced ...