Brookhaven's Observation of the Muons Magnetic Moment

Fermi-Labelsi has used the same exact magnet as Brookhaven did to measure muons magnetic moment. The most popular interpretation at the time was that it had something to do with a theory known as supersymmetry. There are other theories that have become popular in the same sort of time frame, including ones with extra spatial dimensions. And then there's kind of one fourth class of ideas: A really heavy exotic form of matter that interacts strongly with the muon. This is probably something we couldn't test at the Large Hadron Collider or any other laboratory experiments we have right now.