Once a surprise to physicists, these particles are useful tools inside and outside the realm of particle physics.

Muons are elementary particles that resemble electrons, but they are heavier and decay very rapidly (i.e., in just a few microseconds). Studying muons can help to test and refine the standard of ...

This image provided by the Fermi National Accelerator Laboratory shows the ring-shaped track that scientists used to study tiny particles called muons, July 20, 2023 in Batavia, Ill. (Ryan ...