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Particles and interactions

Particles and interactions

Uncertainty over muon result

17 Dec 2001

Theoretical physicists have discovered an algebraic error in calculations of the magnetic moment of the muon which means that recent measurements of the moment do not disagree with the Standard Model of particle physics by as much as had first been thought. The result reduces the probability that the measurements have revealed evidence for new particles.

In February the Muon (g – 2) experiment at Brookhaven reported a value for the magnetic moment

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