2025 Accelerator R&D Principal Investigator Exchange Meeting

November 17, 2025
Sponsored by the Department of Energy
Office of Science, Office of Nuclear Physics

Agenda	Presentations

The Department of Energy (DOE) Office of Science Nuclear Physics (NP) program organized a one-day virtual information meeting between the Principal Investigators with active awards supported by NP, NP Federal Program Managers and the NP Research Division Director. A total of twelve PI talks were presented. All PIs were scheduled to present talks describing current status of work funded by NP under FY 2024 funding opportunity announcement (FOA -DE-FOA-0003261) "Research and Development (R&D) for Next Generation Nuclear Physics Accelerator Facilities". Meeting also included three talks from the Funding FY2022 opportunity announcement (FOA -DE-FOA-0002670) work still in progress under no cost extensions.

Highlights

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Graph comparing a neutron star with a quark-matter core vs. a nuclear matter core in mass vs. radius. The quark matter core star would have less mass and radius than the nuclear matter core, as stars with smaller radii and more mass are too unstable.

New Clues on Twin Neutron Stars and the Extreme Physics Inside

Scientists have new insights into factors that determine how twin neutron stars—stars with the same mass but different sizes and compositions—can coexist.

Illustration of alpha fusion processes in stars and reactions used on Earth floating above an image of the Earth

Predictive Theory Revises Understanding of Alpha Processes During the Big Bang and in Massive Stars

Theoretical calculations enable more accurate determination of reaction rates for modelling primordial lithium-6 abundance and massive stars’ lifecycle.

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