Proof of new physics from the muon’s magnetic moment? Maybe not, according to a new theoretical calculation – Science X

When the results of an experiment don’t match predictions made by the best theory of the day, something is off.
Fifteen years ago, physicists at Brookhaven National Laboratory discovered something perplexing. Muonsa type of subatomic particlewere moving in unexpected ways that didn’t match theoretical predictions. Was the theory wrong? Was the experiment off? Or, tantalizingly, was this evidence of new physics?
Physicists have been trying to solve this mystery every since.
One group from Fermilab…

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