The Muon g-2 electromagnet at Fermilab, ready to receive a beam of muon particles. This experiment began in 2017 and will take data for a total of 3 years, reducing the uncertainties significantly.

Physicists are puzzling over a bunch of measly muons. In a series of experiments at the Tevatron, a powerful atom smasher at the Fermi National Accelerator Laboratory in Batavia, Ill., researchers ...

A super-precise experiment at Fermilab is carefully analyzing every detail of the muon’s magnetic moment. Modern physics is full of the sort of twisty, puzzle-within-a-puzzle plots you’d find in a ...