Resolving conclusions about the early Universe requires accurate nuclear measurements

TL;DR

This paper emphasizes the importance of precise nuclear reaction measurements, especially for extit{d}+ extit{p} reactions, to improve early Universe models and resolve existing discrepancies in cosmological parameter estimates.

Contribution

It highlights the need for more accurate nuclear reaction data to refine cosmological models and address inconsistencies from recent measurements.

Findings

Tightened error bars for extit{d}+ extit{p} reaction in 2020

Discrepancies identified between different analyses

Call for improved measurements of additional reactions

Abstract

Nuclear physics experiments give reaction rates that, via modelling and comparison with primordial abundances, constrain cosmological parameters. The error bars of a key reaction, \dpg, were tightened in 2020, bringing to light discrepancies between different analyses and calling for more accurate measurements of other reactions.