Explainer
How We Know Neutrinos Have Mass
A hundred trillion neutrinos pass through your body every second and never touch you, and for most of the twentieth century physicists were sure they weighed nothing at all. They…
Topic
Neutrino Physics
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Analysis
JUNO’s First Result and the Neutrino Mass Ordering
In 59 days of running, JUNO caught 2,379 antineutrinos and pinned down two oscillation parameters 1.6 times more precisely than every previous experiment combined. It was not built for either…
Research
JUNO beat every previous measurement in 59 days. Its real target is still years away.
The commissioning paper reports 1785 photoelectrons per MeV, 20.6 m scintillator transparency and uranium below 10⁻¹⁶ g/g. The first physics paper reports the world's best solar oscillation parameters from 59.1…
Analysis
Neutrino mass: the sky and the laboratory still disagree
Cosmology's bound has fallen beneath the floor oscillations impose. One of the two pictures is wrong.
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