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After 40 years, CERN finds evidence of a one-in-10-billion particle decay
After 40 years, CERN finds evidence of a one-in-10-billion particle decay
CERN scientists have finally found evidence of a particle decay so rare that it happens only once in roughly 10 billion decays, ending a search spanning more than 40 years. The breakthrough could help physicists uncover hidden particles and forces that lie beyond the reach of today's most powerful accelerators.