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Future Planning for SLAC

Future Planning for SLAC. Persis S. Drell. Scenarios Study 2003: Process. Started early in 2003 Inclusive of SLAC faculty, staff and users. Final Report early 2004 Context There will be a linear collider built and SLAC will be a major participant

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Future Planning for SLAC

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  1. Future Planning for SLAC Persis S. Drell

  2. Scenarios Study 2003: Process • Started early in 2003 • Inclusive of SLAC faculty, staff and users. • Final Report early 2004 • Context • There will be a linear collider built and SLAC will be a major participant • PEP-II/BaBar program has a clear future to 2010 • Growth in particle astrophysics with initiation of KIPAC • Future of SSRL to 2015 and beyond determined by SPEAR3 and LCLS • Charge • Develop models for SLAC’s role in a future linear collider • Explore other exciting science opportunities for laboratory in LC/LCLS era • What will the lab look like a decade from now? SLAC Scenarios

  3. Process: surveyed the major themes in HEP and Particle Astrophysics & Cosmology • B day: 1036 (or 2 x 1035?) e+e- B factory • Neutrino day:accelerator/reactor/solar n oscillations, bb0n • LHC day:accelerator & detector projects for luminosity upgrade • Z/Higgs day:gg @ 30 GeV; e+e- -> Z (10M -> 3G Z/yr); e+e- -> ZH • Two beam day:gg -> Higgs “shop”; 2 beam e+e- -> Z or ZH; CLIC R&D; plasma afterburner for ZH • Cosmology day:Dark matter/energy via SNAP, LSST, Clusters • Additional Seminars with discussion: • An International Linear Collider and What it Might Mean for SLAC (Dave Burke) • Colloquium on ITER, including management (Rob Goldston) • Colloquium on ALMA, including management (Robert Brown) SLAC Scenarios

  4. Excellence SLAC Scientific Particle Astro Physics Science w/ Sync Light High Energy Frontier Flavor Physics Accelerator Physics and Detector Development The Ubiquitous Linac SLAC Scenarios

  5. Pillars of the SLAC Program • The High Energy Frontier • Flavor Physics • Science with Synchrotron Light • Particle Astrophysics and Cosmology • Criteria for Program Development • Cutting edge science opportunites • Opportunities to engage users • Scope of SLAC’s contributions must be commensurate with SLAC’s role as a national lab • Assumption • Linear Collider exits somewhere in the world SLAC Scenarios

  6. The High Energy Frontier

  7. Models for SLAC Participation in LC • Linear Collider the highest priority for high energy program at the laboratory • SLAC continues to champion x-band RF technology choice and strongly supports a US site for the facility. • SLAC is committed to the LC, independent of location and independent of technology • Scenarios committee studied • what are the component pieces of that commitment • how does the laboratory’s on-site effort change depending on downstream decisions: • technology choice • location • Conclusion: The scope of SLAC’s effort supporting LC largely independent LC location and technology SLAC Scenarios

  8. Model of SLAC LC Participation • Model exercise led to conclusion that a reasonable target for SLAC responsibility ~10% of the TPC • Conclusion site and technology independent • Details of the involvement do depend on site and technology • On-shore: US contribution 60% of TPC • 40% of TPC to Project office • SLAC responsible for ~10% of TPC • Off-shore: US contribution 25% of TPC • 5% of TPC to Project office • SLAC responsible for ~10% of TPC • SLAC & FNAL have major US portions • SLAC would like to have major responsibility for one of the two detectors • 50% contribution to 350 M$ detector • 50 physicists and main engineering group at SLAC • Some prototyping and possibly responsibility for major assemblies • SLAC should strive to be collaboration host SLAC Scenarios

  9. Models for SLAC Participation in LHC Upgrades • LHC is the high energy frontier • Complements involvement with LC • Opportunity for small but significant involvement • Machine opportunities in this phase include: • RF upgrades to shorten bunch lengths • RF crab cavities to increase crossing angle • Major detector challenge is inner tracker • Concern could divert resources from • traditional role in electron-based accelerators • linear collider SLAC Scenarios

  10. Flavor Physics

  11. Future B-Physics Program • A 2 x 1035 (~$200M) or 1036 (~$500M) B factory: • Quark flavor mixing sensitive to new physics • LHC can directly discover new physics of EWSB • determine its mass scale • B factory would supply unique and complementary flavor and CP information • Example: SUSY • LHC: measures flavor-diagonal squark masses • B-factory: sensitive to flavor-off-diagonal squark mass and CP-violating phases • If there is new physics in the quark flavor sector, such a machine should be built. • Complements LHC • This is the major variable between scenarios. • Requires accelerator R&D at luminosity frontier SLAC Scenarios

  12. Future Neutrino Program • Neutrinoless double beta decay (bb0n) • Mass potentially related to unification scale • Majorana mass may have implications for baryon asymmetry of the universe • Based on EXO technology if R&D successful • Consider other options if EXO finds showstopper • Participation of the SLAC community in long baseline neutrino oscillation experiments was considered. However, many others are working on this problem and there was not a clear SLAC role SLAC Scenarios

  13. Science with Synchrotron Light

  14. Science with Synchrotron Light • Did not extensively review • Opportunities aggressively developed over past 5 years • SPEAR3 • LCLS • Enabling broad spectrum of science • Materials Science • Structural Biology • Environmental Science • Fempto-chemistry • Nanoscale Dynamics • ..... • Path forward well determined • Includes doubling of SSRL staff by 2010 • Plateau 2010 onward • Continued Accelerator R&D Important SLAC Scenarios

  15. Particle Astrophysics and Cosmology

  16. Particle Astrophysics and Cosmology • KIPAC  Area of growth • Expect doubling of current effort • Did not want to interfere with birth of Institute • Model on: • GLAST ISOC • Involvement with JDEM, LSST • Future major projects? • Identified level of effort • 150-200 technical personnel by 2010 SLAC Scenarios

  17. Scenarios

  18. Pillars of the Program • High Energy Frontier • Participation in LC • Participation in LHC upgrades • High Gradient Accelerator R&D • Science with Synchrotron Light • SPEAR III • LCLS • Accelerator R&D aimed at machines past LCLS.V1 • Flavor Physics • mne • Future B-factory program • High Luminosity Accelerator R&D • Particle Astrophysics and Cosmology • GLAST ISOC • Scaled to example of LSST, JDEM participation SLAC Scenarios

  19. Scenarios: Details • Scenario 1: • LC Anywhere • no B-factory upgrade past 3x1034 • Advanced accelerator R&D doubling in 10 years • Scenario 2 • LC Anywhere • 2x1035 B-factory at SLAC • Advanced accelerator R&D grows by 50% in 10 years • Scenario 3 • LC on shore • 1036 B-factory at KEK • Full Linac capability preserved • Advanced accelerator R&D doubling in 10 years • Scenario 4 • LC off shore • 1036 B-factory at SLAC • Advanced accelerator R&D grows by 50% in 10 years SLAC Scenarios

  20. Conclusions of Scenarios Study • Committee enthusiastic about rich program of science in all scenarios • Scope of the linear collider effort at SLAC independent of LC location and technology • SLAC committed to warm x-band and US site • Committee recommends SLAC consider participating in LHC luminosity upgrades • Level of advanced accelerator R&D should grow • Greatest variable in scenarios is the future of the B-factory program • Future SSRL program has well defined growth path • Particle astrophysics should at least double • SLAC Linac will continue to be an essential part of the program SLAC Scenarios

  21. Since Scenarios.... • ITRTP SLAC ILC R&D aligning to cold decision • Decision not to pursue Super-B at SLAC • FY06 budget • B-factory turns off 2008 at latest • Beginning of transfer of responsibility for LINAC to BES • BES commits to support LINAC in LCLS era • KIPAC vision developed with focus on dark energy/dark matter • JDEM & LSST focus of R&D effort SLAC Scenarios

  22. Major Budget Drivers Going Forward • BES commitment to support the linac potentially frees $96M for HEP to redirect to new initiatives • Early transfer of responsibility from HEP to BES is helpful to HEP since can take advantage of these resources in advance of the B-factory turn off • We will compete within the HEP for those resources to support and grow ILC R&D at SLAC • An additional ~$20M (people and M&S) is available with the ramp down of BaBar ($37M ramps to $15.5 in FY13) • Since much of this is in people, we have tried to craft a program that uses those talents for smaller initiatives that provide science to the community in the ‘gap’ between B-factory turn off and ILC turn on SLAC Scenarios

  23. Elements of Proposed Mid-Term Particle and Astro-Particle Program • Non-Accelerator Based • Neutrinoless double beta decay • Our technical approach: EXO • Ground based dark energy telescope • Our technical approach: LSST • Space based dark energy probe • Our technical approach: Join SNAP Collab. • Accelerator Based • ILC/ILC detector • Details from Raubenheimer/Jaros • Accelerator Research  SABER • Continued broad program • New accelerator based initiative** • Revisit recommendations of scenarios study SLAC Scenarios

  24. Program Scenarios • Built ‘bottom up’ scenarios with program growth based on planned technological development • Included ramp down of BaBar effort • Included hoped for ramp up of ILC effort • Included distribution of technical resources, physicists and M&S • These are ‘scenarios’ not ‘plans’ SLAC Scenarios

  25. FLAT FLAT Scenarios 1: 5% Growth SLAC Scenarios

  26. 6%/year SLAC Scenarios

  27. Programmatic Priorities • For the near term: • We must focus on B-factory performance and delivery of science to our largest user community • For the mid term: • We must continue in our leadership role for the ILC • Highest priority new facility for the world community • We must complete GLAST construction and develop the ISOC • Challenges here due to marriage of 2 cultures • We must work to provide additional opportunities for science to the HEP user community in ~2012 • e.g. LSST, EXO, JDEM, .... • For the long term: • The R&D in accelerator science is our hope for the future of the field • To make the next accelerator *after* the ILC technically feasible and affordable SLAC Scenarios

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