Constraints on neutrino lifetime from the Sudbury Neutrino Observatory



Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Bonventre, R
et al (show 120 more authors) (2019) Constraints on neutrino lifetime from the Sudbury Neutrino Observatory. PHYSICAL REVIEW D, 99 (3). 032013-.

Access the full-text of this item by clicking on the Open Access link.

Abstract

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 B8 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.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 30 Apr 2019 10:29
Last Modified: 22 Jun 2024 09:55
DOI: 10.1103/PhysRevD.99.032013
Open Access URL: https://doi.org/10.1103/PhysRevD.99.032013
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3039053