Sep 30, 2024
Incredibly Rare 13 In 100 Billion Event Seen At CERN Particle Accelerator
Posted by Genevieve Klien in category: particle physics
In 2020, the team reported evidence of this rare form of decay being detected by the experiment. Now, after far more collisions, including higher-energy collisions, the team reports a 5-sigma detection, meaning there is a 0.00006 percent chance that the detection is a statistical fluke.
“With this measurement, K+ → π+νṽ becomes the rarest decay established at discovery level – the famous 5 sigma,” Cristina Lazzeroni, Professor in Particle Physics at the University of Birmingham, said in a statement. “This difficult analysis is the result of excellent teamwork, and I am extremely proud of this new result.”
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