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.
@article{arxiv.1810.00862,
title = {Neutron Lifetime Discrepancy as a Sign of a Dark Sector?},
author = {Bartosz Fornal and Benjamin Grinstein},
journal= {arXiv preprint arXiv:1810.00862},
year = {2018}
}
Comments
Talk presented at CIPANP2018. 8 pages, 2 figures; based on: Phys. Rev. Lett. 120, 191801 (2018) [arXiv:1801.01124]; v2: references added