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Constraints on neutrino lifetime from the Sudbury Neutrino Observatory

SNO Collaboration; Aharmim, B.; Ahmed, S. N.; Anthony, A. E.; Barros, N.; Beier, E. W.; Bellerive, A.; Beltran, B.; Bergevin, M.; Biller, S. D.; Bonventre, R.; Boudjemline, K.; Boulay, M. G.; Cai, B.; Callaghan, E. J.; Caravaca, J.; Chan, Y. D.; Chauhan, D.; Chen, M.; Cleveland, B. T.; Cox, G. A.; ... mehr

The long baseline between Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decay would be an energy-dependent distortion of the traditional survival probability which can be fit for using well-developed and high-precision analysis methods. Here a model including neutrino decay is fit to all three phases of 8B solar neutrino data taken by the Sudbury Neutrino Observatory (SNO). This fit constrains the lifetime of neutrino mass state ν2 to be > 8.08 × 10−5 s=eV at 90% confidence. An analysis combining this SNO result with those from other solar neutrino experiments results in a combined limit for the lifetime of mass state ν2 of > 1.92 × 10−3 s=eV at 90% confidence.

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Verlagsausgabe §
DOI: 10.5445/IR/1000100652
Veröffentlicht am 09.12.2019
DOI: 10.1103/PhysRevD.99.032013
Zitationen: 11
Web of Science
Zitationen: 10
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
KITopen-ID: 1000100652
Erschienen in Physical review / D
Verlag American Physical Society (APS)
Band 99
Heft 3
Seiten Art. Nr.: 032013
Vorab online veröffentlicht am 25.02.2019
Nachgewiesen in Scopus
Web of Science
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