- Composite subatomic structures created by powerful collisions of protons have fallen apart in unexpected ways within a detector in the Large Hadron Collider called LHCb
- Experiments using the LHCb detector see a skewed muon-to-electron decay ratio lower than expected by 25 percent. Anomalies of this kind point to "new physics," details of the fundamental forces of nature that remain to be worked out
- These are extremely rare events; just one in 100 million beauty mesons decay in this way, though the collider produces billions. Only this one detector has seen the anomaly.
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