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Neutron Lifetime Anomaly and Big Bang Nucleosynthesis

Published 21 Oct 2022 in hep-ph, astro-ph.CO, and nucl-th | (2210.12031v2)

Abstract: We calculate the Big Bang Nucleosynthesis abundances for helium-4 and deuterium for a range of neutron lifetimes, $\tau_n = 840 - 1050$ s, using the state-of-the-art Python package \textsc{PRyMordial}. We show the results for two different nuclear reaction rates, calculated by NACRE II [1] and the PRIMAT [2] collaborations.

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