期刊
PHYSICAL REVIEW D
卷 99, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.032013
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资金
- Canada: Natural Sciences and Engineering Research Council
- Canada: Industry Canada
- Canada: National Research Council
- Canada: Northern Ontario Heritage Fund
- Canada: Atomic Energy of Canada, Ltd.
- Canada: Ontario Power Generation
- Canada: High Performance Computing Virtual Laboratory
- Canada: Canada Foundation for Innovation
- Canada: Canada Research Chairs program
- U. S.: Department of Energy Office of Nuclear Physics
- U. S.: National Energy Research Scientific Computing Center
- U. S.: Alfred P. Sloan Foundation
- U. S.: National Science Foundation
- U. S.: Queens Breakthrough Fund
- U. S.: Department of Energy National Nuclear Security Administration through the Nuclear Science and Security Consortium
- United Kingdom: Science and Technology Facilities Council
- Portugal: Fundacao para a Ciencia e a Tecnologia
- STFC [ST/N000404/1, ST/S000798/1] Funding Source: UKRI
The long baseline between Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decaywould 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 B-8 solar neutrino data taken by the SudburyNeutrino Observatory (SNO). This fit constrains the lifetime of neutrino mass state nu(2) to be > 8.08 x 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 nu(2) of > 1.92 x 10(-3) s/eV at 90% confidence.
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