New limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator

• Published in: arXiv.org 2017-04
• Main Authors: Abgrall, N, Arnquist, I J, Avignone, F T, Barabash, A S, Bertrand, F E, Bradley, A W, Brudanin, V, Busch, M, Buuck, M, Caldwell, T S, Y-D, Chan, Christofferson, C D, P -H Chu, Cuesta, C, Detwiler, J A, Dunagan, C, Efremenko, Yu, Ejiri, H, Elliott, S R, Gilliss, T, Giovanetti, G K, Goett, J, Green, M P, Gruszko, J, Guinn, I S, Guiseppe, V E, Haufe, C R S, Henning, R, Hoppe, E W, Howard, S, Howe, M A, Jasinski, B R, Keeter, K J, Kidd, M F, Konovalov, S I, Kouzes, R T, Lopez, A M, MacMullin, J, Martin, R D, Massarczyk, R, Meijer, S J, Mertens, S, O'Shaughnessy, C, Poon, A W P, Radford, D C, Rager, J, Reine, A L, Rielage, K, Robertson, R G H, Shanks, B, Shirchenko, M, Suriano, A M, Tedeschi, D, Trimble, J E, Varner, R L, Vasilyev, S, Vetter, K, Vorren, K, White, B R, Wilkerson, J F, Wiseman, C, W Xu, Yakushev, E, C -H Yu, Yumatov, V, Zhitnikov, I, Zhu, B X
• Format: Article
• Language: English
• Subjects: Confidence intervals; Couplings; Dark matter; Decay; Electron transitions; Electrons; Pauli exclusion principle
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1612.00886

We present new limits on exotic keV-scale physics based on 478 kg d of MAJORANA DEMONSTRATOR commissioning data. Constraints at the 90% confidence level are derived on bosonic dark matter (DM) and solar axion couplings, Pauli exclusion principle violating (PEPV) decay, and electron decay using monoenergetic peak signal-limits above our background. Our most stringent DM constraints are set for 11.8 keV mass particles, limiting \(g_{Ae}