Update on Nuclear Physics Advisory Panel, Roadmap, and Membership

Nuclear Physics Advisory Panel (NPAP) Update David Sharp Chair, Nuclear Physics Advisory Panel (NPAP) 23rd April 2025

NPAP Membership David Sharp Rachel Montgomery Philippos Papadakis Paul Stevenson University of Manchester University of Glasgow STFC Daresbury University of Surrey Call for applications is open https://www.ukri.org/who-we-are/stfc/how-we-are-governed/advisory-boards/call-for-applications/ This will include openings for 4 new members including the Chair. Expertise sought in areas of hadronic physics, nuclear astrophysics, nuclear structure, theory and instrumentation. If you would like to discuss the role then please get in touch david.sharp@manchester.ac.uk 2

2024 Nuclear Physics Roadmap Completed roadmap is available online https://www.ukri.org/wp-content/uploads/2012/10/STFC-041224- NPAP-STFC-Roadmap-2024.pdf Culmination of over 18 months work. Resulted in high-level recommendations to STFC. Broad overview of subject. 10-year roadmap and project prioritisation. Submitted to SB along with SWOT analysis. 3

2024 Nuclear Physics Roadmap High-level recommendations STFC consolidated-grant and pipeline funding for skills and technology are critical to future success. STFC should support international projects in nuclear and hadronic physics. Novel funding solutions should be found to support capacity building within nuclear theory to support the fundamental science and UK PLC needs. Early R&D support should be enhanced to enable and to de-risk novel technology and fund theory endeavours. STFC should assist the community in furthering experimental and theoretical efforts in applied nuclear physics, .using expertise gained from fundamental science to maintain sovereign capability for the UK in the nuclear area. 4

2024 Nuclear Physics Roadmap Prioritisation process By 1 May 2024, NPAP received 36 contributions to the 10-year prioritisation plan demonstrating an ambitious community vision with a very high potential for building a streamlined set of projects to become a part of the Roadmap. A series of community meetings were held on 8 May, 15 May, and 22 May. Analysis, streamlining, and prioritisation of the now 22 contributions were performed in three subject areas and discussed within the following Working Groups who then assigned a priority (Top/High/Medium): 1)Nuclear structure and nuclear astrophysics (Chair: Dave Joss). 2)Hadron physics (Chair: Bjoern Seitz). 3)General interest (Chair: Carl Wheldon). WG1 made use of subset of NPGP for rankings due to large number of proposals and conflicts within WG and NPAP leads. 5

2024 Nuclear Physics Roadmap 10-year plan prioritisation A Proposals within the core STFC PPAN programme remit Costs ( M) 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 A.Structure A.Hadron Prioritised nuclear structure and astrophysics proposals A.Structure.1 Top priority - Low-energy physics at the limits of stability 4.0 A.Structure.2 Top priority - TRISTAN@ISOLDE A.Structure.3 High priority - Total Absorption Spectrometer A.Structure.4 High priority - Studies of heavy elements A.Structure.5 High priority - Ab initio nuclear theory A.Structure.6 High priority - Nuclear Structure and Dynamics A.Structure.7 High priority - FAIR Low Energy A.Structure.8 Medium priority - FRIB Upgrade A.Structure.9 Medium priority - Proton-rich nuclei at the limits Prioritised hadron physics proposals 6.0 5.5 5.5 1.0 1.0 5.0 6.0 2.0 A.Hadron.1 A.Hadron.2 A.Hadron.3 Prioritised general community-interest proposals Top priority - JLAB Future High priority - Hadron Physics at AMBER Medium priority - ELSA@Bonn 5.0 0.2 0.2 A.General A.General.1 A.General.2 A.General.3 Medium priority - UK centre for quantum entanglement High priority - Photon spallation source Medium priority - 160Gd double beta decay 0.7 7.0 2.7 6

2024 Nuclear Physics Roadmap 10-year plan prioritization B Aspirational proposals and new-initiative Costs ( M) 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 B.Structure B.Hadron B.General Prioritised nuclear structure and astrophysics proposals B.Structure.1 High priority - HRS@R3B Prioritised hadron physics proposals R&D B.Hadron.1 Prioritised general community-interest proposals Top priority - ALICE3 B.General.1 B.General.2 B.General.3 B.General.4 B.General.5 B.General.6 Top priority - Nuclear Theory Centre Top priority - Nuclear Astrophysics Centre Top priority - Accelerated Beams Facility (ABRA) High priority - UK Centre for Nuclear Data High priority - UK Centre for Nuclear Applications Medium priority - Reactor neutrino flux 7

2024 Nuclear Physics Roadmap Arising opportunities B Aspirational proposals and new-initiative Costs ( M) 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 B.Structure B.Hadron B.General Prioritised nuclear structure and astrophysics proposals B.Structure.1 High priority - HRS@R3B Prioritised hadron physics proposals R&D B.Hadron.1 Prioritised general community-interest proposals Top priority - ALICE3 B.General.1 B.General.2 B.General.3 B.General.4 B.General.5 B.General.6 Top priority - Nuclear Theory Centre Top priority - Nuclear Astrophysics Centre Top priority - Accelerated Beams Facility (ABRA) High priority - UK Centre for Nuclear Data High priority - UK Centre for Nuclear Applications Medium priority - Reactor neutrino flux 8

2024 Nuclear Physics Roadmap Arising opportunities Centres of excellence in Nuclear Data Provide capability and skills pipeline both in terms of nuclear theory and experiment. Critical for nuclear industry (civil and defence). Nuclear Theory Fundamental in supporting nuclear data needs and fundamental science. IPPP could provide opportunities Michael Spannowksy Talk today. Initial contact made due to NP Roadmap reporting at SB. Workshop with IPPP to outline areas of interest and routes forward. 9

Next steps SB Roadmap Await outcomes of SRs and SB Roadmap. Ongoing community dialogue community meeting in June (date TBC) in Manchester Keep roadmap up-to-date and review new opportunities/concerns. Aspirational plans need continued dialogue to identify potential opportunities/solutions. Centre of Excellence for Nuclear Data (AWE will attend). Workshop with IPPP. 10

European Strategy for Particle Physics ESPP submission ESPP essentially dictates the future strategy for CERN. This impacts on UK NP through ISOLDE, n_ToF, NA, ALICE users. Specific question regarding physics beyond colliders and nuclear physics at CERN where input has been provided. Support for nuclear physics at CERN has been clearly stated. Final drafting meeting Monday 28th April. https://indico.cern.ch/event/1439855/contributions/6461578/ 11

Thank you 12