Speaker
Sebastián Franchino-Viñas
(Universidad Nacional de La Plata)
Description
The primordial abundance of lithium is still a subject of controversy, given the disagreement between numerical results and observational estimates. We show how this discrepancy can be understood in the context of variation of fundamental constants at the epoch of Big Bang Nucleosynthesis. The variation of Newton's constant plays a crucial role. In particular, its interpretation in terms of additional relativistic degrees of freedom suggests an alleviation to the $H_0$ tension.
Authors
Mrs
Mercedes Mosquera
(Universidad de La Plata)
Sebastián Franchino-Viñas
(Universidad Nacional de La Plata)
