Muon g − 2 and Tests of Relativity

Abstract

After a brief introduction to the muon anomalous moment a ≡ (g − 2)/2, the pioneering measurements at CERN are described. This includes the CERN cyclotron experiment, the first Muon Storage Ring, the invention of the "magic energy", the second Muon Storage Ring and stringent tests of special relativity.

Muons, gravity and time

“…In the muon storage rings at CERN [4] and Brookhaven [5] muons of 3.1 GeV are trapped in a ring magnet 14 m diameter for hundreds of microseconds. According to special relativity the muon lifetime, normally 2.198 µs, is dilated to 64.435 µs by the relativistic factor γ = 29.327.…”