Jefferson Lab Science Program

1. Jefferson Lab Science Program R. D. McKeown Jefferson Lab Users Meeting June 3, 2014

2. Outline • PAC and science program • New Projects Update • MEIC Planning • NSAC Long Range Plan • Outlook

3. 12 GeV Approved Experiments by Physics Topics

4. 12 GeVApproved Experiments by PAC Days More than 7 years of approved experiments

5. PAC41 PAC41 was held during the week of May 19, 2014. This was 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.

6. PAC41 • The PAC will consider all such approved and conditionally approved Stage II proposals in each of the six physics categories, and discuss the relative priority of the proposals in each category. Stage II proposals are those expected to be ready, based on equipment and beam availability, for scheduling of production running (beyond commissioning) during the first 3-5 years in the 12 GeV era of CEBAF. The PAC should identify a subset of these proposals that it considers to be "High Impact" for scheduling priority during this time frame. • Please note that the present status (grades and approved running time) of all previously approved proposals will not be changed by this procedure. It is not anticipated that the PAC will need additional input from the proposal collaborations for this meeting. Hall Leaders and JLab management may be consulted by the PAC during their deliberations if necessary.

7. PAC41 Subcommittees • The Hadron spectra as probes of QCD(GlueX and heavy baryon and meson spectroscopy) • The transverse structure of the hadrons(Elastic and transition Form Factors) • The longitudinal structure of the hadrons(Unpolarized and polarized parton distribution functions) • The 3D structure of the hadrons • 4G: Generalized Parton Distributions • 4T: Transverse Momentum Distributions • Hadrons and cold nuclear matter(Medium modification of the nucleons, quark hadronization, N-N correlations, hypernuclear spectroscopy, few-body experiments) • Low-energy tests of the Standard Model and Fundamental Symmetries(MOLLER, PVDIS, PRIMEX, ...)

8. Approved and Conditionally Approved Stage II PAC Days Note: 1692 PAC Days are ‘A’ rated Goal for PAC41: Select 600 PAC days for “High Impact”

9. PAC41 Results

10. PAC41 Results (cont’d)

11. PAC41 Results (cont’d)

12. PAC41 Results • PAC41 identified 643 PAC-days of “High Impact” experiments • These will receive priority for scheduling in the first 5 years of 12 GeV running • These represent less than half of the anticipated running time • Lab management agrees with the PAC that this represents input to the scheduling process

13. Notes from the PAC Chair What High Impact does notmean is that an experiment is of greater ultimate worth than one not receiving this label. Many projects deemed by the PAC to be of great value to the laboratory were not included in the selection. Examples of omissions are : •long-term projects; the SIDIS, GPD, and spectroscopy programs are prime examples, where we selected only a small “High Impact” fraction of the hundreds of approved days. • experiments that will refine our understanding of an observable — often greatly — but where the observable’s qualitative features are largely known; examples are medium- modification studies of fragmentation, and our preference in the spin program for measurements from a neutron target (3He) rather than proton or deuterium targets. •experiments that are crucial in the long term to reducing experimental and theoretical systematic uncertainties of other programs to a level commensurate with the planned statistical precision, but whose results in the short term meaningful only to experts. This list is not meant to be exhaustive. We reiterate that the High Impact designation is intended to provide a strategic core program, leaving ample room for the scheduling of many other experiments. “we had to exclude experiments that we unanimously agreed should be included”

14. PAC41 Results • Please read the report carefully, and keep in mind that this is guidance for scheduling. Nothing really new here, only additional PAC input. • It is extremely important for the Lab to realize a very high impact program early in the 12 GeV program. The PAC has done an admirable job of helping us to identify such potential components of this program. • This will help usto optimize our resources for realizing scientific excellence at Jefferson Lab in both the shorter and longer terms.

15. PAC42 • Scheduled for July 28-August 1 • Proposals were due June 2 • 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.

16. Beyond 12 GeV Upgrade • Super BigBite Spectrometer • ( FY13-16 construction) • - High Q2 form factors • - SIDIS • MOLLER experiment • (MIE – FY16-19?) • - Standard Model Test • - DOE review (Summer 2014?) • SoLID • - Chinese collaboration • - CLEO Solenoid  • - Director’s review (2014?) • Enhancements of equipment in B, C, D • (Leverage external investments)

17. Other Recent Developments • HPS funded by DOE HEP in FY15 • - Install in FY14 • - Hope for Scheduling in Hall B in FY15 • PRad MRI funded. • - Request for install in FY14/15 • - Hope for Scheduling in Hall B in FY15 • CLEO solenoid committed for SoLID project, final negotiations • Decision by DOE-HEP re Babar DIRC for GlueX • Hall B RICH detector reviewed September 5-6, 2013 • - DOE participation • - very positive

18. Electron Ion Collider NSAC 2007 Long-Range Plan: “An Electron-Ion Collider (EIC)with polarized beams has been embraced by the U.S. nuclear science community as embodying the vision for reaching the next QCD frontier. EIC would provide unique capabilities for the study of QCD well beyond those available at existing facilities worldwide and complementary to those planned for the next generation of accelerators in Europe and Asia.” • Jefferson Lab and BNL developing facility designs • Joint community efforts to develop science case  white paper (2012)

19. Construction Underway…

20. EIC Realization Imagined Assumes endorsement for an EIC at the next NSAC Long Range Plan Assumes relevant accelerator R&D for down-select process done around 2016

21. EIC Developments MEIC design review (3 external reviewers) held Jan. 2014 Initiated MEIC Cost Review Task Force ~6 months EICAC meeting (2/28-3/1, BNL) EIC14 Accelerator workshop at JLab(Mar. 17-21) VA request for new $4.6M over 2 years Site assessment Electron cooling test hardware Project staffing EIC User Meeting at Stony Brook (June 23-27)

22. EICAC Result • Full Report at • http://skipper.physics.sunysb.edu/~abhay/2014/EICAC/EICAC-Feb2014Meeting-FinalReport.pdf • Science case well received (white paper) • Many recommendations: • Address systematic errors (e.g., lumi, polarimetry) • Form physics task teams  detector design assessment • Beam-gas backgrounds need further study • Increase accelerator R&D , explore cooperation • Consider delaying non-critical R&D • Continue cost estimating • For MEIC: Explore ways to expand the R&D effort to levels consistent with timeline shown at this meeting.

23. present planning - draft: MEIC on JLab Site Planned Tech Center

27. 2015 LRP Plans • Town meetings – joint RHI/Hadronic meeting as for 2007 • DNP Executive Committee has appointed conveners (QCD: H. Gao and C. Roberts) • Schedule and venue – TBA, likely early fall, east coast • Town meeting white papers due in Dec. 2014 • Resolution meeting Jan-Feb 2015 • Preliminary report to NSAC - March 2015

28. JLab LRP issues • 12 GeV white paper from 2011 served us well, not seriously outdated – let’s not rewrite it! Perhaps a short update for PAC totals. • EIC white paper being updated by writing group (mostly input from LHC program) • Town meeting output can include both white papers, others from the rest of the community, and perhaps a short cover document. • JLab community should support/contribute to - Nuclear Structure/Astrophysics - Fundamental Symmetries and Neutrinos • LRP should recommend complete construction and begin full operations for new facilities – JLab12 and FRIB • LRP should support MIE projects – MOLLER and SoLID • LRP should recommendation construction of EIC

29. Summary & Outlook • PAC - 2 meetings in 2014 - Special prioritization meeting • Moving forward with SBS and other smaller projects, planning for MOLLER, SoLID • Much activity to advance EIC • NSAC LRP imminent – unified JLab community is essential for success.