schematic of Brookhaven muon g-2 experiment (IMAGE)
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Schematic of Brookhaven Lab's muon g-2 experiment. Physicists compare their measurements of how the spins of muons precess, or "wobble," as the particles move around the storage ring with theoretical calculations that predict the precession based on how the muons interact with all known particles. If the measurements and theory match up, it increases confidence that the theory indeed includes all known particles. If there is a discrepancy, it may point to the existence of yet-to-be discovered particles or fields not included in those calculations.
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Brookhaven National Laboratory
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