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<p>CUORE detector being installed into the cryostat. (Yury Suvorov and the CUORE Collaboration)</p>

CUORE team places new limits on the bizarre behavior of neutrinos

Researchers at the Cryogenic Underground Observatory for Rare Events (CUORE) announced this week that they had placed some of the most stringent limits yet on the strange possibility that the neutrino is its own antiparticle. CUORE has spent the last three years patiently waiting to see evidence of a distinctive nuclear decay process, only possible if neutrinos and antineutrinos are the same particle. Their new data shows that this decay doesn’t happen for trillions of trillions of years, if it happens at all.