From Science Magazine.

For decades, particle physicists have longed for something—anything—their prevailing theory, the standard model, cannot explain. Last June, perhaps the most tantalizing sign of a new mystery vanished when a long-running experiment reported that, contrary to its earlier claims, a particle called the muon was not more magnetic than the standard model predicts. Behind the disappointment lurks a triumph: Theorists were finally able to calculate the muon’s magnetism precisely from scratch using a technique called lattice gauge theory.

CREDITS: (FOOTAGE) BROOKHAVEN LABORATORY; (ILLUSTRATIONS) A. FISHER/SCIENCE; (VIDEO PRODUCTION) M. CANTWELL/SCIENCE

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