1. Fermilab charged lepton program 1/47 B. Casey, BNL Colloquium CLFV  new mixing matrix –Multi-decade program to determine 4 free parameters Flavor conserving –Muon g-2 Flavor violating –Mu2e –Next generation Mu2e @ Project X –  e  e ee,   e   e    also being considered @ Project X CP violating –e EDM with rare isotopes –  EDM storage ring experiments

2. Around the world 2/47 B. Casey, BNL Colloquium  →e ,  N→eN  →e  eee  →  (g-2) e, (g-2) , (g-2)  Cold traps, intense muon sources, super B factories,  /charm factories, lepton colliders, Hadron colliders… CP violation: lepton EDM measurements Physics for the next 4 decades:

3. Kick starting the program: the new muon g-2 experiment 3/47 B. Casey, BNL Colloquium Follow up of BNL experiment but better: –Reuse the storage ring –10x longer decay channel –Segmented calorimeters –Tracking –>20x statistics, >2x less systematics Coupled with a world wide program to interpret the measurement target ring Pbar complex

4. It is happening! 4/47 B. Casey, BNL Colloquium Detector R&D:

5. It is happening! 5/47 B. Casey, BNL Colloquium Full g4 ring simulation Transport line designs

6. It’s happening! 6/47 B. Casey, BNL Colloquium Hadronic Light by Light scattering is the last major component of predicted value based on model dependent calculations New program at KLOE to measure dominant contributions to this diagram with 2 photon physics at very low Q 2 With this new data, (g-2)m theory error will be almost entirely driven by independent experiments

7. It’s happening! Lattice community is becoming actively engaged in the g-2 effort On the way to providing a first principles calculation of muon g-2 7/47 B. Casey, BNL Colloquium Feng, Petschiles, Jansen, Renner arXiv:1103.4818 3% (!)

8. It’s happening! 8/47 B. Casey, BNL Colloquium Mandy Rominsky FNAL Kelly Hardin FNAL Chris Polly FNAL BC FNAL Leah Welty-Rieger FNAL/Northwestern

9. It’s happening! 9/47 B. Casey, BNL Colloquium Matthew Gubanich and David Orozco Matthew Gubanich and David Orozco from Regis Don Von Lintig BNL John Benante BNL

10. It’s happening! 10/47 B. Casey, BNL Colloquium muon g-2 measurements independent measurements Lattice tau spectral function R scan radiative return electron g-2 two photon BNL FNAL JPARC g-2 muonium

11. Conclusions ‘Fermilab program’ builds in many ways on Brookhaven ideas and accomplishments Fermilab is the right place at the right time Brookhaven is a strong collaborator on many of these projects and is essential to the success of the program 11/47 B. Casey, BNL Colloquium “It ain’t over till its over.” -Yogi Berra