Constraints on neutrino lifetime from the Sudbury Neutrino Observatory

Aharmim, B, Ahmed, S N, Anthony, A E, Barros, N, Beier, E W, Bellerive, A, Beltran, B, Bergevin, M, Biller, S D, Bonventre, R, Peeters, S, SNO Collaboration, and others, (2019) Constraints on neutrino lifetime from the Sudbury Neutrino Observatory. Physical Review D, 99 (3). 032013 1-10. ISSN 2470-0010

[img] PDF - Published Version
Available under License Creative Commons Attribution.

Download (766kB)
[img] PDF - Accepted Version
Download (864kB)

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 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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science
Depositing User: Alice Jackson
Date Deposited: 01 Feb 2019 11:50
Last Modified: 01 Jul 2019 19:01
URI: http://sro.sussex.ac.uk/id/eprint/81598

View download statistics for this item

📧 Request an update
Project NameSussex Project NumberFunderFunder Ref
UK: Science and Technology FacilitiesUnsetUnsetUnset