Dreams of new physics fade with latest muon magnetism result
https://www.nature.com/articles/d41586-023-02532-6
Muons are similar to electrons, but 207 times more massive. They are also unstable: they are creat…The magnetism of the muon originates mainly from the fact that the particle has an electric charge and that it spins on itself. These two factors combine to make the particle act like a tiny bar magnet, with a field strength prescribed by quantum physics to be equal to 2, in the appropriate units. Thi… In principle, the standard model of particle physics predicts how each type of particle in the Univer…In 2001, an experiment at Brookhaven National Laboratory in Upton, New York, made the most precise measurement yet of the muon’s magnetism2, and found it to deviate from the theoretical predictions that were then state-of-the-art. To investigate this discrepancy, physicists rebuilt the …
Muons are similar to electrons, but 207 times more massive. They are also unstable: they are creat…The magnetism of the muon originates mainly from the fact that the particle has an electric charge and that it spins on itself. These two factors combine to make the particle act like a tiny bar magnet, with a field strength prescribed by quantum physics to be equal to 2, in the appropriate units. Thi…
In principle, the standard model of particle physics predicts how each type of particle in the Univer…In 2001, an experiment at Brookhaven National Laboratory in Upton, New York, made the most precise measurement yet of the muon’s magnetism2, and found it to deviate from the theoretical predictions that were then state-of-the-art. To investigate this discrepancy, physicists rebuilt the …
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