AF 1 Beam Physics and Accelerator Education CoConveners

AF 1: Beam Physics and Accelerator Education Co-Conveners Mei Bai (GSI/U. Bonn) Zhirong Huang (SLAC/Stanford) AF 4 Multi-Te. V Colliders Nadia Pastrone (INFN) Steve Lund (MSU/USPAS) AF 6 Advanced Accelerator Concepts Ralph Assmann (DESY)

AF 1 themes We would like to • Appreciate the contributions from all Lo. I writers • Organize discussions to clarify and identify R&D concerns, needs, synergies • Summarize and share findings at the Snowmass meeting 01: Education, Diversity and Outreach 04: Physics Limits of Ultimate Beams Dedicated meeting (workshop) ● Invite all Lo. I contributors ● Discuss issues and propose steps 119. HEP and Accelerator Workforce, Careers, and Training (Oct. 7) Discuss ultimate beam parameters such as energy, intensity, brilliance, beam power on-target allowed by the fundamental laws of physics. Discuss practical limits from engineering and technology. 176. Grand challenges of ultimate beams and ultimate high energy colliders (joint with AF 4/6, Oct. 6) 04 01 03 03: Computational Tools & Machine Learning 02: Research Center/Facility Discussion forum to clarify needs of test/R&D facilities to support concept R&D, training, and educational needs. 175. Accelerator Research Centers and test facilities (joint with AF 4/6, Oct. 6) 02 Propose joint with Computational Frontier to cover tools extending modeling capabilities, potential ML impacts, education, and more efficient use of resources. 64. Computing needs of accelerator frontiers (joint with comp. F, Oct. 6)

Session 175 agenda (10/6, 11: 30 -12: 30 CT) • • • Introduction (Zhirong Huang, 5 minutes) GARD test facilities (Vitaly Yakimenko, 10 minutes) International facilities (Ralph Assmann, 10 minutes) Universities (Ritchie Patterson, 10 minutes) New initiatives – Low energy test facilities (Edy Nissen, 5 minutes) – CBETA (Georg Hoffstaetter, 5 minutes) – Any additional contributions? (all, 5 minutes) General discussions of what’s needed (led by AF 1/4/6 conveners, 10 minutes)

Accelerator Implementation Task Force Charge One of the key goals of the Snowmass’ 21 Accelerator Frontier is to address the question “What are the time and cost scales of the R&D and associated test facilities as well as the time and cost scale of the facility? ”A large number of accelerator projects are being considered and/or developed as part of the Snowmass'21 effort. Examples include: ILC, a Muon Collider, gamma-gamma and ERL options, a large circumference electron ring, and a large circumference hadron ring amongst others. One of the challenges for the Accelerator Topical groups will be to compare the expected cost scales, schedule, and R&D status for the projects as they will be at varied stages of development and possibly proposed using different accounting rules. The Accelerator Implementation Task Force is charged with developing metrics and processes to facilitate such a comparison between projects. Acc. Frontier CPM Intro, Oct 6, 2020 1. development of the metrics to compare projects’ cost, schedule/timeline, technical risks (readiness), operating cost and environmental impact, and R&D status and plans; 2. jointly with the three topical groups focused on large colliders: AF 3 -- Accelerators for Higgs and EW, AF 4 -- Multi-Te. V Colliders, and AF 6 -- Advanced Accelerator Concepts, select the accelerator projects to be evaluated; 3. work with the proponents of the selected accelerator projects to evaluate them against the metrics from item 1; 4. jointly with AF 1 - Accelerator Science, consider the ultimate limits of various types of colliders: e+/e-, p/p, mu+/mu-; 5. jointly with AF 7 – Accelerator Technology, consider limits and timescales due to accelerator technology for various types of colliders: e+/e-, p/p, mu+/mu-; 6. lead the evaluation of the different HEP accelerator proposals and inform and communicate with the Snowmass’ 21 AF, EF and TF in the course of the Snowmass 21 activities; 7. document the metrics, processes, and conclusions for the Snowmass'21 meeting in the Summer 2021; write and submit a corresponding White Paper. From Tor Raubenheimer 4