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Physicists Say the Proton Radius Puzzle May Finally Be Settled
Two highly precise hydrogen experiments now agree with the smaller proton measurement that once shocked physics, strengthening the case that the particle’s radius is about 0.84 femtometres.
Key Takeaways
- Two new experiments support the smaller proton size first flagged in 2010.
- Both studies used hydrogen atoms and laser-controlled electron transitions.
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DT Editorial Team··via newscientist.com