Neutron Lifetime Discrepancy as a Sign of a Dark Sector?

Abstract

We summarize our recent proposal of explaining the discrepancy between the bottle and beam measurements of the neutron lifetime through the existence of a dark sector, which the neutron can decay to with a branching fraction 1%. We show that viable particle physics models for such neutron dark decays can be constructed and we briefly comment on recent developments in this area.

Talk presented at CIPANP2018. 8 pages, 2 figures; based on: Phys. Rev. Lett. 120, 191801 (2018) [arXiv:1801.01124]; v2: references added

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Cited by in corpus (2)

• Neutron Decay to a Non-Abelian Dark Sector
• Neutron Dark Matter Decays and Correlation Coefficients of Neutron Beta Decays