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...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2020-02-01
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Series: | European Physical Journal C: Particles and Fields |
Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-7727-y |