Co-Conveners: Zhirong Huang (SLAC/Stanford), Steve Lund (MSU), Mei Bai (SLAC)

Beam physics and Accelerator Science & Technology (AST) education are critical to the future of HEP accelerator facilities worldwide. This Topical Group will focus on:

• The relationship of Beam Physics and AST education to the US HEP program, and outreach to the worldwide accelerator communities.
• The relationship of AST for HEP to other programs within the DOE Office of Science and other international science and research organizations.
• Identify ongoing and potential research topics necessary to advance the frontiers of AST for HEP.

We are soliciting 2-page Letters of Interest (LoI’s; see https://snowmass21.org/loi for submission information) from the community to this working group. The LoI’s should serve as an extended abstract for a future contributed paper. Authors are encouraged to bring in collaborators and follow up with a full writeup for their work. Please note that the outreach activities will also overlap with the Community Involvement WG https://snowmass21.org/community/start.

For reference: materials of two 2019-20 GARD Accelerator and Beam Physics (ABP) Workshops are available at https://conferences.lbl.gov/event/279/ and https://indico.fnal.gov/event/22709/. The workshop conveners identified four ABP grand challenges:

• Grand challenge #1 (beam intensity): How do we increase beam intensities by orders of magnitude?
• Grand challenge #2 (beam quality): How do we increase beam phase-space density by orders of magnitude, towards quantum degeneracy limit?
• Grand challenge #3 (beam control): How do we control the beam distribution down to the level of individual particles?
• Grand challenge #4 (beam prediction): How do we develop predictive “virtual particle accelerators”?

In addition to these grand challenges, other important ABP missions are associated with the overall DOE HEP missions:

• Advance the physics of accelerators and beams to push the frontiers of accelerator facilities.
• Develop, in coordination with other GARD thrusts, both conventional and advanced accelerator concepts and tools to reduce technology cost while advancing performance.
• To guide and help fully exploit the scientific and technology potential of both HEP GARD facilities and operational accelerators.
• Controls, AI, computing and data science for improved accelerator performance
• Education, training and outreach activities to help secure a strong pipeline of talented and skilled AST workers advance the field for generations to come.

Here is the list of submitted LOIs to this topic. First index before “/” corresponds to the primary frontier used for the submission.