PhysRevD.99.032013.pdf (748.22 kB)
Constraints on neutrino lifetime from the Sudbury Neutrino Observatory
journal contribution
posted on 2023-06-12, 08:59 authored by B Aharmim, S N Ahmed, A E Anthony, N Barros, E W Beier, A Bellerive, B Beltran, M Bergevin, S D Biller, R Bonventre, Simon PeetersSimon Peeters, SNO Collaboration, othersThe 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 ?2 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 ?2 of >1.92×10-3??s/eV at 90% confidence.
Funding
STFC Experimental Particle Physics 2018 Consolidated Grant; G2740; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/S000798/1
UK: Science and Technology Facilities
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review DISSN
2470-0010Publisher
American Physical SocietyExternal DOI
Issue
3Volume
99Page range
032013 1-10Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes