Fermilab is a collaboration of 7 countries like USA, China, Germany, Italy, Korea, Russia, the UK

It group of 33 Institutions and 181 collaborators.

Moun g 2 experiment result say that moun have basically elements.

Cobination of elements

It is denoted by muon, 2nd generation elementary part.

Heavier than electron so more sensitive to virtual particles.

Lighter than pion so no hadronil decays.

Have a property called spin that rotates in a magnetic field.

g determines spin precession feequency in magnetic field