FINAL REPORT ON THE CERN MUON STORAGE RING INCLUDING THE ANOMALOUS MAGNETIC-MOMENT AND THE ELECTRIC-DIPOLE MOMENT OF THE MUON, AND A DIRECT TEST OF RELATIVISTIC TIME DILATION

A comprehensive description of the muon storage ring and its operation is given, and the final results of the experiment are presented and discussed. The anomalous magnetic moments of positive and negative muons are found to be aμ+ = 1165911(11) × 10-9 and aμ = 1165937(12) × 10-9 giving an average value for muons of aμ = 1165924(8.5) × 10-9. The electric dipole moments were also measured with the results Dμ+= (8.6 ± 4.5) × 10-9 e · cm and Dμ = (0.8 ± 4.3) × 10-19 e · cm. Under the assumption of the CPT theorem these yield a weighted average of Dμ = (3.7 ± 3.4) × 10-19 e · cm. Finally the time transformation of special relativity is shown to be valid to (0.8 ± 0.7) × 10-3 at γ ≅ 29.3. All the errors quoted here are one standard deviation and contain both statistical and systematic effects. © 1979.