Published April 3, 2024
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Journal article
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Event-by-event direction reconstruction of solar neutrinos in a high light-yield liquid scintillator
Creators
- 1. Queen's University
- 2. Laboratório de Instrumentação e Física Experimental de Partículas
- 3. University of California, Berkeley
- 4. University of Alberta
- 5. University of Pennsylvania
- 6. SNOLAB
- 7. Laurentian University
- 8. University of Sussex
- 9. University of Oxford
- 10. University of Chicago
Description
The direction of individual $^8B$ 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.
Notes
Due to the large number of authors, only the first 20 and the University of Chicago authors are included on the above author list. Please download the article for the complete list of authors.
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PhysRevD.109.072002.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.109.072002
- Other
- oai:uchicago.tind.io:13264
Funding
- Canada Foundation for Innovation
- Ontario Ministry of Research
- Innovation and Science
- Alberta Science and Research Investments Program
- Queen's University at Kingston
- Federal Economic Development Agency for Northern Ontario
- Natural Sciences and Engineering Research Council of Canada
- Canadian Institute for Advanced Research
- Ontario Early Researcher Awards
- U.S. Department of Energy
- National Science Foundation
- National Nuclear Security Administration
- Nuclear Science and Security Consortium
- Science and Technology Facilities Council and the Royal Society
- Fundação para a Ciência e a Tecnologia
- Deutsche Forschungsgemeinschaft
- Consejo Nacional de Ciencia y Tecnología
- Shandong University
- Discipline Construction Fund