Story perspectives

First Observation of Solar Neutrinos Transforms Carbon-13

12/14/2025

Summary

Story summary

Physicists at SNOLAB in Canada observed solar neutrinos transforming carbon-13 into nitrogen-13, the first such observation.
Led by University of Oxford researchers, the team used a deep underground detector to suppress cosmic-ray backgrounds.
Over 231 days, they recorded 60 candidate events, consistent with about 5.6 predicted neutrino interactions.
The findings, published in Physical Review Letters, validate models and set a new benchmark for nuclear and stellar physics.

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Story summary

Physicists at SNOLAB in Canada observed solar neutrinos transforming carbon-13 into nitrogen-13, the first such observation.
Led by University of Oxford researchers, the team used a deep underground detector to suppress cosmic-ray backgrounds.
Over 231 days, they recorded 60 candidate events, consistent with about 5.6 predicted neutrino interactions.
The findings, published in Physical Review Letters, validate models and set a new benchmark for nuclear and stellar physics.