Event-by-event direction reconstruction of solar neutrinos in a high light-yield liquid scintillator
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
- Chair of Nuclear Physics
- Queen's University Kingston
- Laboratório de Instrumentação e Física Experimental de Partículas
- University of Lisbon
- University of California at Berkeley
- University of Alberta
- University of Pennsylvania
- SNOLAB
- Laurentian University
- University of Coimbra
- University of Sussex
- University of Oxford
- The University of Chicago
- University of Liverpool (UOL)
- King's College London (KCL)
- TUD Dresden University of Technology
- Universidad Nacional Autónoma de México
- Boston University
- TRIUMF
Abstract
The direction of individual B8 solar neutrinos has been reconstructed using the SNO+ liquid scintillator detector. Prompt, directional Cherenkov light was separated from the slower, isotropic scintillation light using time information, and a maximum likelihood method was used to reconstruct the direction of individual scattered electrons. A clear directional signal was observed, correlated with the solar angle. The observation was aided by a period of low primary fluor concentration that resulted in a slower scintillator decay time. This is the first time that event-by-event direction reconstruction in high light-yield liquid scintillator has been demonstrated in a large-scale detector.
Details
Original language | English |
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Article number | 072002 |
Journal | Physical review d |
Volume | 109 |
Issue number | 7 |
Publication status | Published - 1 Apr 2024 |
Peer-reviewed | Yes |