Muon (and electron) Anomalous Magnetic Moment

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Theoretical challenge • Find alternatives to explain discrepancy: – Leptons substructure – Supersymmetry 34
Future experiments • E989 @ Fermilab – Reduce uncertainty to 0.16 ppm: 5 - 6σ deviation. – Factor of 20 increase in statistics. – Significant reduction on systematic uncertainties. 35
Page 1 and 2: Muon (and electron) Anomalous Magne
Page 3 and 4: • Introduction Outline - Measurem
Page 5 and 6: The anomaly • Early experiments s
Page 7 and 8: Muons vs. electrons • Uncertainty
Page 9 and 10: Radiative corrections • Three typ
Page 11 and 12: • Two-loop QED: some Feynman •
Page 13 and 14: Hadronic Vacuum Polarization 13
Page 15 and 16: Electroweak 15
Page 17 and 18: Experimental history • 1947 anoma
Page 19 and 20: E821 at Brookhaven 19
Page 21 and 22: Experimental idea 21
Page 23 and 24: Slow electron Fast electron Muon de
Page 25 and 26: Magic momentum • Electrostatic fo
Page 27 and 28: Detection • 24 electromagnetic ca
Page 29 and 30: Calculating anomaly • B field det
Page 31 and 32: E821 results 14 times more accurat
Page 33: Current status 33
Page 37: What to remember • Muons are “b
Page 40 and 41: Setup 40
Page 42 and 43: Electron anomaly 42

Muon (and electron) Anomalous Magnetic Moment

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