Snowmass AF6

Update & Plans

Accelerator Frontier 6: Advanced Accelerator Concepts

AF6 Conveners

Snowmass Accelerator Conveners (AF1-AF7, ITF) Meeting

December 9, 2021

M.J. Hogan – Subject, Month DD, YYYY

Recent Updates

Contributed papers progress:

• Following AF6 LOI workshop, Interest groups were formed to organize LOIs into broader themes and collaborations with expectations that each group contributes one paper to Snowmass Proceedings.
• Details (title, description, point of contact) in AF6 area of Snowmass2021 website
• Each group has been invited to update on status and plans during AF6 Friday morning meetings
• Useful discussions to provide feedback and clarifications
• Aiming at first draft by end of January, review in February, and submission by March 15th deadline

Today: review topics, solicit additional white papers & added authors for those in progress

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Contributed paper template / Format drafted and circulated

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LDG European report on Advanced Accelerators

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Community wide AF6 meetings to be held in Dec. (today) and Feb. 15th (half day workshop with all of AF6 for mutual input)

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EF engagement

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M.J. Hogan – Subject, Month DD, YYYY

AF6: Contributed Papers & Interest Groups

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To other groups:

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ITF input (input done, processing)

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AF4 white paper integrating all elements of collider for plasmas/structures, possibly others (separate format)

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AF1 facilities paper (John P, from GARD facilities paper)

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AF7 polarized positrons (Pietro)

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FNAL site filler, ILC extension using AF6 tech.

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Applications/industry, computing, environment…

https://snowmass21.org/accelerator/advanced/start#white_paper_coordination

M.J. Hogan – Subject, Month DD, YYYY

AF6: Contributed Papers Contact & Outreach

Please contact POC’s to join a white paper

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POCs/groups should reach out to community for contributions

• Include European and international colleagues
• Reach out to other AF groups, for example
• AF1 (and AF3?) final focus designers for BDS;
• AF 1 site filler group & ILC groups for future AF6 extension of facility reach
• AF4 multi-TeV collider designs (M. Turner EC rep.)
• AF7 polarized positrons
• Reach out to Theory/Energy frontier on signatures
• Community engagement frontier on near term applications (CF1- Liaison J. van Tilborg), DEI (CF2,3), environmental impact (efficiency)(CF7)
• Computational on simulations: Liaison - J.-L. Vay

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Please introduce new white paper topics at this meeting

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M.J. Hogan – Subject, Month DD, YYYY

AF contacts

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M.J. Hogan – Subject, Month DD, YYYY

Advanced Accelerator input to ITF

• PWFA, LWFA, DWFA submissions
• Tables aligned to 1, 3, 15 TeV
• S. Gessner, M. Turner, J. Power, C. Schroeder, C. Jing, E. Esarey, P. Piot
• Numbers to be iterated with interest groups
• Gamma-gamma collider parameters as well

Energy Frontier restart workshop (8/30-9/3/21):

https://indico.fnal.gov/event/49756/timetable/

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Several presentations of interest:

• Status of activities and progress made in Accelerator Frontier – Tor
• Unstructured Discussions: Joint Discussion with AF: advanced acceleration concepts and the collider options – Cameron, Vladimir & Dmitri et al.

M.J. Hogan – Subject, Month DD, YYYY

Contributed paper template / format

At a high level, the Accelerator Frontier will address the overall questions:

• What is needed to advance the physics of accelerators for High Energy Physics?
• AF6: Enable new capabilities
• What is currently available (state of the art) around the world?
• AF6: Progress in techniques, collider concepts and path
• What new accelerator facilities could be available on the next decade (or next next decade)?
• AF6: Test facilities, with coordinated plan to impact collider path
• AF6: Intermediate applications and how they contribute to HEP goals

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We encourage reference to recent reports on advanced accelerator and supporting technology development including the 2016 Advanced Accelerator Development Strategy Report and others. For example, how will we address such roadmaps, move to the next more detailed level of planning, bring new techniques not yet considered to bear, or address other machines? A collection of recent reports is available at:

https://drive.google.com/drive/folders/1GHIzGgX0uEzz72hnR0o3Dy1W975yjO9T?usp=sharing

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A suggested outline follows.

• Executive Summary
• Intro/background
• Proposed concept
• Development path
• Synergies and Conclusion

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M.J. Hogan – Subject, Month DD, YYYY

Contributed paper

template / format

Each whitepaper team can adapt or add topics that they view as relevant to their proposal.

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If a paper is being submitted across groups it may be most appropriate for it to follow another group’s template (for example the paper to AF4)

M.J. Hogan – Subject, Month DD, YYYY

Looking at the previous Snowmass/P5 exercise�LOI Coordination and alignment with previous efforts

• Roadmaps outline expected progress in the next decade (in broad themes and more specific detail) - similar roadmaps for PWFA, LWFA, structures
• Extend where appropriate - e.g. to many TeV as requested by EF
• Beneficial if LOIs (and Contributed Papers) align to roadmaps and guidance from EF community about latest thinking (e.g. a few TeV vs. Higgs factory + 10TeV)

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Citation of community & DOE reports encouraged

• DOE HEP Report of the Particle Physics Project Prioritization Panel (P5), Building for Discovery: Strategic Plan for U.S. Particle Physics in the Global Context (May 2014). http://science.energy.gov/~/media/hep/hepap/pdf/May%202014/FINAL_P5_Report_Interactive_060214.pdf
• DOE HEP Report of the Accelerator Research and Development Subpanel, Accelerating Discovery: A Strategic Plan for Accelerator R&D in the U.S (April 2015). https://science.osti.gov/-/media/hep/hepap/pdf/Reports/Accelerator_RD_Subpanel_Report.pdf
• DOE HEP Advanced Accelerator Concepts Research Roadmap Workshop Report, Advanced Accelerator Development Strategy Report (February 2016). https://science.osti.gov/-/media/hep/pdf/accelerator-rd-stewardship/Advanced_Accelerator_Development_Strategy_Report.pdf
• OPPORTUNITIES IN INTENSE ULTRAFAST LASERS: Reaching for the Brightest Light, Consensus Study Report from the Committee on Opportunities in the Science, Applications, and Technology of Intense Ultrafast Lasers, National Academies of Sciences, Engineering and Medicine (National Academies Press, Washington DC, 2018). https://www.nap.edu/catalog/24939/opportunities-in-intense-ultrafast-lasers-reaching-for-the-brightest-light
• The Future of Intense Ultrafast Lasers in the U.S., Brightest Light Initiative Workshop Report (OSA, Washington DC, March 2019). https://arxiv.org/abs/2002.09712
• DOE Report of the Department of Energy Office of Science Workshop: Basic Research Needs Workshop on Compact Accelerators for Security and Medicine (May 2019).
• https://science.osti.gov/-/media/hep/pdf/Reports/2020/CASM_WorkshopReport.pdf
• Plasma Science: Enabling Technology, Sustainability, Security, and Exploration Consensus Study Report from the Committee on a Decadal Assessment of Plasma Science, National Academies of Sciences, Engineering and Medicine (National Academies Press, Washington DC, 2020). https://www.nap.edu/download/25802

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In some cases, related agencies can be noted if tied to HEP needs

• BESAC International Benchmarking Subcommittee Report (in finalization, presentation: https://docs.google.com/document/d/1g-qvI7PKG5erJwS-tOPzmNfjW5YkZ-Kjg6J5-eUQmZY/edit)
• A Community Plan for Fusion Energy and Discovery Plasma Sciences, Report of the 2019–2020 American Physical Society Division of Plasma Physics Community Planning Process (March 2020). https://sites.google.com/pppl.gov/dpp-cpp
• Powering the Future: Fusion & Plasmas, A long-range plan to deliver fusion energy and to advance plasma science Report of the Fusion Energy Sciences Advisory Committee (December 2020). https://science.osti.gov/-/media/fes/fesac/pdf/2020/202012/DRAFT_Fusion_and_Plasmas_Report_120420.pdf.

A collection of recent reports is available at: https://drive.google.com/drive/folders/1GHIzGgX0uEzz72hnR0o3Dy1W975yjO9T?usp=sharing

European LDG report on Advanced Accelerators

• Being finalized
• Edited by R. Assman, E. Gschwendtner and R. Ischebeck
• European experts + International observers (AF6 co-conveners + W. Lu from Asia)
• 50 pages report with clear view on status of the field, priorities and facilities list. Connection with US.
• Short-term (5 years) and long term program paths
• International context important to Snowmass: both participation and reference to European/other efforts

M.J. Hogan – Subject, Month DD, YYYY

Other activities past and future

Engagement with EF - support is needed for inclusion of high level signatures for multi TeV e+e- collider (and also gamma-gamma) to support R&D

• C. Geddes talk in EF restart meeting (9/1/21)
• Discussions in Snowmass restart meeting (9/24/21)
• Upcoming Snowmass Agora - participation important
• First on e⁺e^- Colliders Dec. 15th https://indico.fnal.gov/event/52161/
• Advanced accelerator colliders April 13th - AF 6 core opportunity to engage EF/TF
• Potential e+e- forum to parallel Muon Forum
• Work with HEP colleagues at your institution

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AF6 community meeting Feb 15th: Review white paper content, finalize contributions, start organizing AF6 report.

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White papers will set up the Agora with EF/TF on April 13th and the AF6 summary

M.J. Hogan – Subject, Month DD, YYYY