Table of Contents List of Acronyms ......................................................................................................................................... v Executive Summary ................................................................................................................................... vi 1. Overview of Physics Division ................................................................................................................ 1 ATLAS .................................................................................................................................................... 2 Accelerator Development ........................................................................................................................ 3 Low Energy Research .............................................................................................................................. 3 Low Energy Technical Support ............................................................................................................... 3 Medium Energy Physics .......................................................................................................................... 3 Theory ...................................................................................................................................................... 3 Center for Accelerator Target Science ..................................................................................................... 4 Research with Ion Beams and Isotopes ................................................................................................... 4 Nuclear Data ............................................................................................................................................ 4 TRACER (Trace Radioisotope Analysis) Center .................................................................................... 4 2. Argonne Tandem Linac Accelerator System ...................................................................................... 5 2.1. Introduction ...................................................................................................................................... 5 2.2. Research Themes and Goals ............................................................................................................ 7 2.3. Program Requirements, Initiatives, and Upgrades ........................................................................... 8 3. Research Groups & Centers ............................................................................................................... 10 3.1. Accelerator Development .............................................................................................................. 10 3.1.i. Accelerator R&D for the future of ATLAS ....................................................................... 10 3.1.ii. Accelerator R&D for other facilities .................................................................................. 11 3.1.iii. Transformative Research and Development ....................................................................... 11 3.1.iv. Accelerator fabrication and testing facilities ...................................................................... 12 3.1.v. Accelerator development: Long-term planning ................................................................. 13 3.2. Low Energy Physics ...................................................................................................................... 14 3.2.i. Nuclear structure ................................................................................................................ 14 3.2.ii. Nuclear astrophysics .......................................................................................................... 16 3.2.iii. Challenges, opportunities, and planning in low energy physics ........................................ 17 3.3. Low Energy Technical Support ..................................................................................................... 18 3.3.i. Turning ideas into science .................................................................................................. 18 3.4. Medium Energy Physics ................................................................................................................ 19 3.4.i. Hadronic physics ................................................................................................................ 19 3.4.ii. QCD in nuclei .................................................................................................................... 21 3.4.iii. Physics beyond the Standard Model .................................................................................. 21 3.4.iv. Detector R&D and software development ......................................................................... 22 PHYSICS STRATEGIC PLAN 2020 i Table of Contents (Cont.) 3.5. Theory ............................................................................................................................................ 23 3.5.i. QCD and the quark-gluon structure of matter .................................................................... 24 3.5.ii. Nuclear structure and reactions .......................................................................................... 25 3.5.iii. ATLAS and FRIB .............................................................................................................. 26 3.6. Center for Accelerator Target Science ........................................................................................... 27 3.6.i. Targets for nuclear science ................................................................................................. 27 3.7. Research with Ion Beams and Isotopes.......................................................................................... 28 3.7.i. Isotopes .............................................................................................................................. 28 3.7.ii. Ion beam therapy ................................................................................................................ 29 3.7.iii. Fundamental radiobiology ................................................................................................. 29 3.8. Nuclear Data .................................................................................................................................. 30 3.9. TRACER Center ............................................................................................................................ 31 4. Strategic Initiatives .............................................................................................................................. 33 4.1. Electron-Ion Collider ..................................................................................................................... 33 4.2. Facility for Rare Isotope Beams .................................................................................................... 34 4.2.i. GRETA .............................................................................................................................. 34 4.2.ii. SOLARIS ........................................................................................................................... 34 4.2.iii. FRIB Decay Station ........................................................................................................... 34 4.3. High-Performance Computing ....................................................................................................... 35 4.3.i. Low energy at ATLAS ....................................................................................................... 35 4.3.ii. Medium energy .................................................................................................................. 35 4.3.iii. Theory ................................................................................................................................ 36 4.4. Neutrinoless Double Beta Decay ................................................................................................... 37 4.5. The SoLID Experiment .................................................................................................................. 38 5. Emergent Initiatives ............................................................................................................................ 39 5.1. Artificial Intelligence ..................................................................................................................... 39 5.2. Extreme Materials .......................................................................................................................... 40 5.3. Ion Beam Therapy.......................................................................................................................... 41 5.4. Quantum Information Science ....................................................................................................... 42 6. Diversity and Inclusion ........................................................................................................................ 43 7. Safety, Standards, & Data Management ........................................................................................... 44 7.1. Safety, standards, policies .............................................................................................................. 44 7.2. Data management..........................................................................................................................