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29 March 2024
 
  » arxiv » 1812.5552

 Article overview


Search for invisible modes of nucleon decay in water with the SNO+ detector
Authors ; SNO+ Collaboration ; M. Anderson ; S. Andringa ; E. Arushanova ; S. Asahi ; M. Askins ; D. J. Auty ; A. R. Back ; Z. Barnard ; N. Barros ; D. Bartlett ; F. Barão ; R. Bayes ; E. W. Beier ; A. Bialek ; S. D. Biller ; E. Blucher ; R. Bonventre ; M. Boulay ; D. Braid ; E. Caden ; E. J. Callaghan ; J. Caravaca ; J. Carvalho ; L. Cavalli ; D. Chauhan ; M. Chen ; O. Chkvorets ; K. J. Clark ; B. Cleveland ; C. Connors ; I. T. Coulter ; D. Cressy ; X. Dai ; C. Darrach ; B. Davis-Purcell ; M. M. Depatie ; F. Descamps ; F. Di Lodovico ; N. Duhaime ; F. Duncan ; J. Dunger ; E. Falk ; N. Fatemighomi ; V. Fischer ; E. Fletcher ; R. Ford ; N. Gagnon ; K. Gilje ; P. Gorel ; K. Graham ; C. Grant ; J. Grove ; S. Grullon ; E. Guillian ; A. L. Hallin ; D. Hallman ; S. Hans ; J. Hartnell ; P. Harvey ; M. Hedayatipour ; W. J. Heintzelman ; J. Heise ; R. L. Helmer ; J. L. Hernández-Hernández ; B. Hreljac ; J. Hu ; T. Iida ; A. S. Inácio ; C. M. Jackson ; N. A. Jelley ; C. J. Jillings ; C. Jones ; P. G. Jones ; K. Kamdin ; T. Kaptanoglu ; J. Kaspar ; K. Keeter ; C. Kefelian ; P. Khaghani ; L. Kippenbrock ; J. R. Klein ; R. Knapik ; J. Kofron ; L. L. Kormos ; B. Krar ; C. Kraus ; C. B. Krauss ; T. Kroupova ; K. Labe ; I. Lam ; C. Lan ; B. J. Land ; R. Lane ; S. Langrock ; A. LaTorre ; I. Lawson ; L. Lebanowski ; G. M. Lefeuvre ; E. J. Leming ; A. Li ; J. Lidgard ; B. Liggins ; X. Liu ; Y. Liu ; V. Lozza ; M. Luo ; S. Maguire ; A. Maio ; K. Majumdar ; S. Manecki ; J. Maneira ; R. D. Martin ; E. Marzec ; A. Mastbaum ; N. McCauley ; A. B. McDonald ; J. E. McMillan ; P. Mekarski ; M. Meyer ; C. Miller ; M. Mlejnek ; E. Mony ; I. Morton-Blake ; M. J. Mottram ; S. Nae ; M. Nirkko ; V. Novikov ; H. M. O'Keeffe ; E. O'Sullivan ; G. D. Orebi Gann ; M. J. Parnell ; J. Paton ; S. J. M. Peeters ; T. Pershing ; Z. Petriw ; L. Pickard ; D. Pracsovics ; G. Prior ; J. C. Prouty ; S. Quirk ; A. Reichold ; R. Richardson ; M. Rigan ; A. Robertson ; J. Rose ; R. Rosero ; P. M. Rost ; J. Rumleskie ; M. A. Schumaker ; M. H. Schwendener ; D. Scislowski ; J. Secrest ; M. Seddighin ; L. Segui ; S. Seibert ; I. Semenec ; T. Shantz ; T. M. Shokair ; L. Sibley ; J. R. Sinclair ; K. Singh ; P. Skensved ; T. Sonley ; R. Stainforth ; M. Strait ; M. I. Stringer ; R. Svoboda ; A. Sörensen ; B. Tam ; J. Tatar ; L. Tian ; N. Tolich ; J. Tseng ; H. W. C. Tseung ; E. Turner ; R. Van Berg ; J. G. C. Veinot ; C. J. Virtue ; B. von Krosigk ; E. Vázquez-Jáuregui ; J. M. G. Walker ; M. Walker ; J. Wang ; O. Wasalski ; J. Waterfield ; J. J. Weigand ; R. F. White ; J. R. Wilson ; T. J. Winchester ; P. Woosaree ; A. Wright ; J. P. Yanez ; M. Yeh ; T. Zhao ; K. Zuber ; A. Zummo ;
Date 13 Dec 2018
AbstractThis 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 de-excite, often emitting detectable gamma rays. A search for such gamma rays yields limits of $2.5 imes 10^{29}$ y at 90% Bayesian credibility level (with a prior uniform in rate) for the partial lifetime of the neutron, and $3.6 imes 10^{29}$ 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 $1.3 imes 10^{28}$ y for $nn$, $2.6 imes 10^{28}$ y for $pn$ and $4.7 imes 10^{28}$ y for $pp$, an improvement over existing limits by close to three orders of magnitude for the latter two.
Source arXiv, 1812.5552
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