Accelerated Muons

https://www.sciencenews.org/article/accelerated-muons-particle-colliders

"Muon colliders could generate higher energy collisions than machines that smash protons, which are themselves made up of smaller particles called quarks. Each proton’s energy is divvied up among its quarks, meaning only part of the energy goes into the collision. Muons have no smaller bits inside. And they’re preferable to electrons, which lose energy as they circle an accelerator. Muons aren’t as affected by that issue thanks to their larger mass.

In addition to colliders, muon beams are useful for experiments such as measuring the particles’ magnetic properties, a subject that has confounded physicists (SN: 8/10/23)."

-Emily Conover