Search for invisible modes of nucleon decay in water with the SNO+ detector
- Author(s): Anderson, M
- Andringa, S
- Arushanova, E
- Asahi, S
- Askins, M
- Auty, DJ
- Back, AR
- Barnard, Z
- Barros, N
- Bartlett, D
- Barão, F
- Bayes, R
- Beier, EW
- Bialek, A
- Biller, SD
- Blucher, E
- Bonventre, R
- Boulay, M
- Braid, D
- Caden, E
- Callaghan, EJ
- Caravaca, J
- Carvalho, J
- Cavalli, L
- Chauhan, D
- Chen, M
- Chkvorets, O
- Clark, KJ
- Cleveland, B
- Connors, C
- Coulter, IT
- Cressy, D
- Dai, X
- Darrach, C
- Davis-Purcell, B
- Depatie, MM
- Descamps, F
- Di Lodovico, F
- Duhaime, N
- Duncan, F
- Dunger, J
- Falk, E
- Fatemighomi, N
- Fischer, V
- Fletcher, E
- Ford, R
- Gagnon, N
- Gilje, K
- Gorel, P
- Graham, K
- Grant, C
- Grove, J
- Grullon, S
- Guillian, E
- Hallin, AL
- Hallman, D
- Hans, S
- Hartnell, J
- Harvey, P
- Hedayatipour, M
- Heintzelman, WJ
- Heise, J
- Helmer, RL
- Hernández-Hernández, JL
- Hreljac, B
- Hu, J
- Iida, T
- Inácio, AS
- Jackson, CM
- Jelley, NA
- Jillings, CJ
- Jones, C
- Jones, PG
- Kamdin, K
- Kaptanoglu, T
- Kaspar, J
- Keeter, K
- Kefelian, C
- Khaghani, P
- Kippenbrock, L
- Klein, JR
- Knapik, R
- Kofron, J
- Kormos, LL
- Krar, B
- Kraus, C
- Krauss, CB
- Kroupova, T
- Labe, K
- Lam, I
- Lan, C
- Land, BJ
- Lane, R
- Langrock, S
- Latorre, A
- Lawson, I
- Lebanowski, L
- Lefeuvre, GM
- Leming, EJ
- Li, A
- et al.
Published Web Location
http://10.0.4.79/physrevd.99.032008Abstract
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP 3 . This paper reports results from a search for nucleon decay through invisible modes, where no visible energy is directly deposited during the decay itself, during the initial water phase of SNO+. However, such decays within the oxygen nucleus would produce an excited daughter that would subsequently deexcite, often emitting detectable gamma rays. A search for such gamma rays yields limits of 2.5×1029 y at 90% Bayesian credibility level (with a prior uniform in rate) for the partial lifetime of the neutron, and 3.6×1029 y for the partial lifetime of the proton, the latter a 70% improvement on the previous limit from SNO. We also present partial lifetime limits for invisible dinucleon modes of 1.3×1028 y for nn, 2.6×1028 y for pn and 4.7×1028 y for pp, an improvement over existing limits by close to 3 orders of magnitude for the latter two.