The experimental value of the muon’s magnetic moment disagrees with theoretical predictions, but some of those predictions also disagree with each other a problem theorists are working to resolve.
Jorge Cham, aka PHD Comics, illustrates how researchers have turned our Galaxy into a giant antenna for catching gravitational waves, spotting for the first time a background hum of such waves.
The Muon g-2 Collaboration has doubled the precision of their 2021 measurement of the muon’s magnetic moment, strengthening a tension with predictions based on the standard model.