Search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory

Aharmim, B.; Ahmed, S. N.; Anthony, A. E.; Barros, N.; Beier, E. W.; Bellerive, A.; Beltran, B.; Bergevin, M.; Biller, S. D.; Boudjemline, K.; Boulay, M. G.; Cai, B.; Chan, Y. D.; Chauhan, D.; Chen, M.; Cleveland, B. T.; Cox, G. A.; Dai, X.; Deng, H.; Detwiler, J. A.; Doe, P. J.; Doucas, G.; Drouin, P. -L.; Duncan, F. A.; Dunford, M.; Earle, E. D.; Elliott, S. R.; Evans, H. C.; Ewan, G. T.; Farine, J.; Fergani, H.; Fleurot, F.; Ford, R. J.; Formaggio, J. A.; Gagnon, N.; Goon, J. TM.; Graham, K.; Guillian, E.; Habib, S.; Hahn, R. L.; Hallin, A. L.; Hallman, E. D.; Harvey, P. J.; Hazama, R.; Heintzelman, W. J.; Heise, J.; Helmer, R. L.; Hime, A.; Howard, C.; Huang, M.; Jagam, P.; Jamieson, B.; Jelley, N. A.; Jerkins, M.; Keeter, K. J.; Klein, J. R.; Kormos, L. L.; Kos, M.; Krüger, A.; Kraus, C.; Krauss, C. B.; Kutter, T.; Kyba, C. C.  M.; Lange, R.; Law, J.; Lawson, I. T.; Lesko, K. T.; Leslie, J. R.; Levine, I.; Loach, J. C.; MacLellan, R.; Majerus, S.; Mak, H. B.; Maneira, J.; Martin, R. D.; McCauley, N.; McDonald, A. B.; McGee, S. R.; Miller, M. L.; Monreal, B.; Monroe, J.; Nickel, B. G.; Noble, A. J.; O’Keeffe, H. M.; Oblath, N. S.; Okada, C. E.; Ollerhead, R. W.; Orebi Gann, G. D.; Oser, S. M.; Ott, R. A.; Peeters, S. J.  M.; Poon, A. W.  P.; Prior, G.; Reitzner, S. D.; Rielage, K.; Robertson, B. C.; Robertson, R. G.  H.; Schwendener, M. H.; Secrest, J. A.; Seibert, S. R.; Simard, O.; Simpson, J. J.; Sinclair, D.; Skensved, P.; Sonley, T. J.; Stonehill, L. C.; Tešić, G.; Tolich, N.; Tsui, T.; Van Berg, R.; VanDevender, B. A.; Virtue, C. J.; Wall, B. L.; Waller, D.; Wan Chan Tseung, H.; Wark, D. L.; Wendland, J.; West, N.; Wilkerson, J. F.; Wilson, J. R.; Wright, A.; Yeh, M.; Zhang, F.; Zuber, K.

doi:10.1103/PhysRevD.96.092005

Title: Search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory

Journal Article · Mon Nov 20 00:00:00 EST 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.96.092005· OSTI ID:1436259

Aharmim, B.; Ahmed, S. N.; Anthony, A. E.; Barros, N.; Beier, E. W.; Bellerive, A.; Beltran, B.; Bergevin, M.; Biller, S. D.; Boudjemline, K.; Boulay, M. G.; Cai, B.; Chan, Y. D.; Chauhan, D.; Chen, M.; Cleveland, B. T.; Cox, G. A.; Dai, X.; Deng, H.; Detwiler, J. A. more »

Tests on B–L symmetry breaking models are important probes to search for new physics. One proposed model with Δ(B–L)=2 involves the oscillations of a neutron to an antineutron. In this paper, a new limit on this process is derived for the data acquired from all three operational phases of the Sudbury Neutrino Observatory experiment. The search concentrated on oscillations occurring within the deuteron, and 23 events were observed against a background expectation of 30.5 events. These translated to a lower limit on the nuclear lifetime of 1.48 × 10³¹ yr at 90% C.L. when no restriction was placed on the signal likelihood space (unbounded). Alternatively, a lower limit on the nuclear lifetime was found to be 1.18 × 10³¹ yr at 90% C.L. when the signal was forced into a positive likelihood space (bounded). Values for the free oscillation time derived from various models are also provided in this article. Furthermore, this is the first search for neutron-antineutron oscillation with the deuteron as a target.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: SNO Collaboration

Grant/Contract Number:: SC0012704; FG02-88ER40479; AC52-07NA27344; LLNL-JRNL-728820; AC52-06NA25396; AC02-05CH11231; AC05-76RL01830

OSTI ID:: 1436259

Alternate ID(s):: OSTI ID: 1409462; OSTI ID: 1414153; OSTI ID: 1420128; OSTI ID: 1426135; OSTI ID: 1430701

Report Number(s):: BNL-203612-2018-JAAM; LA-UR-17-23149; LLNL-JRNL-728820; PRVDAQ; TRN: US1900164

Journal Information:: Physical Review D, Vol. 96, Issue 9; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 36 works

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Implications of an Improved Neutron-Antineutron Oscillation Search for Baryogenesis: A Minimal Effective Theory Analysis Grojean, Christophe; Shakya, Bibhushan; Wells, James Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-04994	text	January 2018
Implications of an Improved Neutron-Antineutron Oscillation Search for Baryogenesis: A Minimal Effective Theory Analysis Grojean, Christophe; Shakya, Bibhushan; Wells, James Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-02235	text	January 2018
Cosmogenic neutron production at the Sudbury Neutrino Observatory Aharmim, B.; Ahmed, S. N.; Anthony, A. E. Karlsruhe https://doi.org/10.5445/ir/1000104700	text	January 2020
Quantum Field Theory of Particle Oscillations: Neutron-Antineutron Conversion Tureanu, Anca arXiv https://doi.org/10.48550/arxiv.1804.06433	text	January 2018
Implications of an Improved Neutron-Antineutron Oscillation Search for Baryogenesis: A Minimal Effective Theory Analysis Grojean, Christophe; Shakya, Bibhushan; Wells, James D. arXiv https://doi.org/10.48550/arxiv.1806.00011	text	January 2018
Neutron-antineutron oscillations from lattice QCD Rinaldi, Enrico; Syritsyn, Sergey; Wagman, Michael L. arXiv https://doi.org/10.48550/arxiv.1809.00246	text	January 2018
Baryon-number violation by two units and the deuteron lifetime Oosterhof, F.; Long, B.; de Vries, J. arXiv https://doi.org/10.48550/arxiv.1902.05342	text	January 2019
Baryon-Number-Violating Nucleon and Dinucleon Decays in a Model with Large Extra Dimensions Girmohanta, Sudhakantha; Shrock, Robert arXiv https://doi.org/10.48550/arxiv.1911.05102	text	January 2019

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