Improved BBN constraints on the variation of the gravitational constant

Abstract Big Bang Nucleosynthesis (BBN) is very sensitive to the cosmological expansion rate. If the gravitational constant G took a different value during the nucleosynthesis epoch than today, the primordial abundances of light elements would be affected. In this work, we improve the bounds on this...

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Bibliographic Details
Main Authors: James Alvey, Nashwan Sabti, Miguel Escudero, Malcolm Fairbairn
Format: Article
Language:English
Published: SpringerOpen 2020-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-7727-y