Abstract
We point out that two models that reconcile the neutron lifetime anomaly via dark decays of the neutron, also predict dark matter-neutron (\( \overline{\chi} \) − n) annihilation that may be observable in neutron-antineutron oscillation and proton decay searches at Super-Kamiokande, Hyper-Kamiokande and DUNE. We study signatures of \( \overline{\chi} \)n → γπ0 (or multi-π0) and \( \overline{\chi} \)n → ϕγπ0 (or ϕ+multi-π0), where ϕ is an almost massless boson in one of the two models.
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ArXiv ePrint: 1905.03401
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Keung, WY., Marfatia, D. & Tseng, PY. Annihilation signatures of neutron dark decay models in neutron oscillation and proton decay searches. J. High Energ. Phys. 2019, 53 (2019). https://doi.org/10.1007/JHEP09(2019)053
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DOI: https://doi.org/10.1007/JHEP09(2019)053