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Jefferson Lab Status

Jefferson Lab Status. R. D. McKeown Deputy Director For Science. Hall A collaboration Dec. 16 , 2013. 12 GeV Upgrade Project. New Hall. Add 5 cryomodules. 20 cryomodules. Add arc. 20 cryomodules. Add 5 cryomodules. Enhanced capabilities in existing Halls.

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Jefferson Lab Status

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  1. Jefferson Lab Status R. D. McKeown Deputy Director For Science Hall Acollaboration Dec. 16, 2013

  2. 12 GeV Upgrade Project New Hall Add 5 cryomodules 20 cryomodules Add arc 20 cryomodules Add 5 cryomodules Enhanced capabilities in existing Halls Upgrade is designed to build on existing facility: vast majority of accelerator and experimental equipment have continued use Upgrade arc magnets and supplies Maintain capability to deliver lower pass beam energies: 2.2, 4.4, 6.6…. CHL upgrade The completion of the 12 GeV Upgrade of CEBAF was ranked the highest priority in the 2007 NSAC Long Range Plan. • Scope of the project includes: • Doubling the accelerator beam energy • New experimental Hall and beamline • Upgrades to existing Experimental Halls

  3. 12 GeV Scientific Capabilities Hall D – exploring origin ofconfinementby studying exotic mesons Hall B – understanding nucleon structure viageneralized parton distributions Hall C – precision determination of valence quark properties in nucleons and nuclei Hall A–form factors, future new experiments (e.g., SoLIDand MOLLER)

  4. 12 GeV Upgrade Project Schedule FY12: reduction of $16M FY13: Pres Request – no restoration • 16-month installation • May 2012 - Sept 2013 • Accelerator commissioning start Oct 2013 • Hall A commissioning start Feb 2014 • Hall D commissioning start • Oct 2014 • Halls B & C commissioning start Jan/Feb 2016 • Project Completion September 2017 Re-baseline Approved September 4, 2013

  5. 12 GeV Project Highlights Hall D & Counting House Hall D Hall D Central Drift Chamber 12 GeVCryomodules Hall C Arc Magnets Hall B Drift Chamber

  6. Three year plan

  7. 12 GeV Approved Experiments by Physics Topics

  8. 12 GeVApproved Experiments by PAC Days More than 7 years of approved experiments

  9. PAC41 PAC41 will be held during the week of May 19, 2014. This will be a special meeting to discuss the priority of already approved proposals for scheduling during the first 3-5 years of production running (beyond commissioning) in the 12 GeV era of CEBAF. The goal of this meeting is to provide input to the Lab scheduling process from the PAC in order to realize the highest impact program early in the 12 GeV running period.

  10. PAC42 • Scheduled for July 28-August 1 • Proposals will be due early June • Charge: • Review new proposals, previously conditionally approved proposals, and letters of intentfor experiments that will utilize the 12 GeV upgrade of CEBAF and provide advice on their scientific merit, technical feasibility and resource requirements. • Identify proposals with high-quality physics that, represent high quality physics within the range of scientific importance represented by the previously approved 12 GeVproposals and recommend for approval. • Also provide a recommendation on scientific rating and beamtime allocation for proposals newly recommended for approval. • Identify other proposals with physics that have the potential for falling into this category pending clarification of scientific and/or technical issues and recommend for conditional approval. Provide comments on technical and scientific issues that should be addressed by the proponents prior to review at a future PAC.

  11. Jefferson Lab: Today and Tomorrow • The Jefferson Lab electron accelerator is a unique world-leading facility for nuclear physics research • 12 GeV upgrade ensures at least a decade of excellent opportunities for discovery • – New vistas in QCD • – Growing program Beyond the Standard Model • – Additional equipment: SBS, MOLLER, SoLID • EIC moving forward: • – Strong science case, much builds on JLab 12 GeV program • –MEIC design well developed – time scale following 12 GeV program is “natural”

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