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Helium and deuterium abundances as a test for the time variation of the fine structure constant and the Higgs vacuum expectation value
(IOP Publishing, 2007-12)
We use the semi-analytic method of Esmailzadeh et al (1991 Astrophys. J. 378 504-18) to calculate the abundances of helium and deuterium produced during Big Bang nucleosynthesis assuming the fine structure constant and the ...
The Tachyon propagator
(1993)
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 ...