1. HEP at Argonne: my personal view Peter Winter

2. HEP in the long-term future  High energy collider: Many past discoveries and hopefully the LHC will bring us more exciting discoveries in the next years. But it seems cost prohibitive to go to the next bigger machine or the one after that.  Precision tests of fundamental symmetries, theoretical predictions and rare-decays can indirectly probe for TeV scale physics and beyond. Individual experiments are arguably less efficient in terms of the physics per $ but more feasible as a continous research program.  Dark matter, dark energy are one of the biggest mysteries and with it the understanding of the universe at large scales will play a dominant role in the future of HEP. Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 2

3. Where do I see myself in the future  Precision tests (LFV, CP, g-2 etc.) are a gateway to test for BSM physics. The establishment of the muon campus at Fermilab is a clear indication that this field has a long-term future (>10 years).  These are sizeable DOE Projects ($46M for g-2 and $275M for Mu2e). If either g-2 or Mu2e find a deviation from the SM, we will have an obvious continuation. But even without there are conceivable next steps (  - for g-2, Mu2e-II with stronger proton beam, muon EDM,...).  It is very important, that we have a critical mass / leadership roles in those experiments, especially Mu2e. If we ensure this today, we will have strong arguments for important roles on a possible Mu2e-II (10x increased sensitivity via PIP-II).  I will gradually ramp up my effort on Mu2e (and for sure on Mu2e-II) as these are long-term research activities (easily 10+ years) Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 3

4. Where do I see myself in the future  P5 also steared focus towards more Project funding which requires managerial involvement in the CD process. While this is tedious and sometimes an extra hurdle, I am seeking to continue such Level-N manager positions in future DOE projects.  Beyond the muon experiments, EDM searches (proton EDM at Fermilab) are a compelling route to look for BSM physics. Just a reminder: –g-2: CP and flavor conserving new physics –Mu2e: Charged LFV new physics –EDMs: T, P violating -> CP violating new physics  Dark matter research would also be on my personal list of future involvement depending on the outcome of the near future muon experiments. Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 4

5. Muons in the past and future as a versatile tool Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 5 GFGF  Standard model physics: –MuLan measuring the muon lifetime to determine G F –MuCap / MuSun measuring muon capture on the nucleon(s) to understand nuclear structure –Muonic Lamb shift to measure the proton charge radius r p (proton radius puzzle) –... rprp  gPgP

6. Muons in the past and future as a versatile tool Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 6 GFGF  Applied physics –Muon spin resonance (  SR) to study magnetic properties of materials rprp  gPgP GFGF  SR

7. Muons in the past and future as a versatile tool Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 7 GFGF  Beyond the standard model physics: –g-2: Search for new particles (Flavor- and CP conserving) –Charged Lepton Flavor Violation:  -> e conversion (Mu2e, COMET),  -> e  (MEG),  -> eee –Left-right symmetric BSM: Michel parameter measurement (TWIST) –Muon EDM –... rprp gPgP GFGF  SR g-2  cLFV EDM 

8. How do I see our strategy for the muon efforts  In 3 years, we have grown from single person effort to now ~6 staff members and 2 postdocs.  We have major roles in g-2 but establishment of an analysis center crucial to remain a major player during data taking. We need to attract grad student(s) and host external collaborators.  Mu2e is clearly the longer-term future. It is impressive how much responsibilities we attracted in a short time. We will strengthen our effort by getting more involved with simulation/analysis for physics impact (Lee, Jingbo).  Simulation/analysis for Mu2e is a gateway to be a player in planning of a future Mu2e-II. If we get on that now we can possibly take a larger piece of the cake once that turns into a real DOE Project.  Think about new ideas and regularly revisit over the next 2-3 years to be involved in shaping the next step after g-2/Mu2e. Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 8

9. What should be our strengths at Argonne  Our existence in competition with other HEP institutions across the U.S. must be justified by unique assets (which we already have but might need to preserve): –Significant electronics and mechanical support groups that might set us apart from universities (and labs) –High performance computing uniquely used for HEP physics to leverage the experimental efforts and increase efficiency in the analysis / simulations –Large construction facility (HighBay 366) –Strong R&D effort (accelerator and / or detectors) to shape and enable future HEP research –...?  Our proximity is an advantage being involved in Fermilab-based DOE projects.  While we have the above assets, tight funding might require to focus on certain aspects and funnel our attention on these to remain at / rise to the top. Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 9

10. What (support) is missing at Argonne?  We are active in many fields, do we have the critical manpower or should we focus on a fewer topics?  Theory group effort on the muon program (e.g. hadr. contributions to g-2 are one of the big challenges) could set us apart from others and help guide where to look in the future.  Can we expand the ASC to host external students to leverage the analysis / simulation for other challenging experiments?  Young scientists (postdocs, grad students,...) are important to turn our great ideas into reality. However, experiments are long these days and I like the idea having (fewer?) postdocs past 3 years (3+1+1?).  Is it possible to use some (more) base funding for electronics / mechanics groups which could help to get a head start in preliminary design phases?  More DOE project-related training to simplify, strengthen our roles in the complex Critical Decision process  Social division events (One Division!) Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 10

11. How can we leverage that we are at Argonne?  Collaboration across fields will become even more important in the future (funding agencies are looking for that) –Could we spark interest across divisions (PHY, MSD,...) to use muon campus?  Argonne is a multi-discipline lab, so we need to be creative to leverage our local resources  We should find ways to overcome the barriers (spatial, funding, research focus) across the lab to get into a mode where collaboration is more feasible.  This needs a catalyst (you usually don’t walk just into another division): Cross-disciplinary seminars, tours,...?  Of course collaboration starts with ourselves... Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 11

12. Summary  We have established ourselves in the muon program  Will focus on making strong impact on the physics analysis  g-2 / Mu2e are for sure a 10 years program with even a 15 years perspective.  Will need to devote time to be involved when it is time to shape the future for experiments past 2025 in this field of precision tests. Peter Winter: ANL HEP strategic retreat, 01/11-12, 2016 12