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Joint Institute for Nuclear Research
09.04.2026

M. O. Gonchar "JUNO Experiment: Neutrino Oscillations and More"

JUNO is the largest, multipurpose experiment designed to detect, primarily, reactor antineutrinos. The main goal of the experiment is to determine the ordering and squared mass difference of neutrinos, as well as to precisely measure the lepton mixing angle θ₁₂.

At the same time, it is the largest scintillation detector with a target mass of 20 thousand tons, equipped with almost 20 thousand twenty-inch and 25 thousand three-inch photomultipliers.

JUNO has a record-breaking energy resolution of σ=3% (for 1 MeV of released energy). This makes JUNO sensitive not only to reactor antineutrinos, but also to geoneutrinos, atmospheric and solar neutrinos, and the neutrino signal from supernova explosions.

After ten years of preparation and construction, the JUNO experiment was launched in 2025. After just two months of data collection, the JUNO collaboration measured two parameters of neutrino oscillations with record precision.

The status of the experiment, the first results, the physical program, and also the history of the experiment preparation and JINR contribution will be presented at the seminar.

Presentation

Link to watch the video on the JINR resource:
https://disk.jinr.ru/index.php/s/i3focZppNSigBNS 

Link to wathch video on VK:
https://vkvideo.ru/video-179241683_456239859