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Nuclear Masses in Astrophysics for the Next 25 Years

11–13 May 2026
Facility for Rare Isotope Beams, East Lansing, MI, USA
US/Eastern timezone

Contribution List

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  1. 4. Welcome
    11/05/2026, 09:00
  2. 1. The r process: nature’s tour guide of the unmapped nuclear chart
    Nicole Vassh (TRIUMF)
    11/05/2026, 09:05

    The astrophysical rapid neutron capture process (r-process) ventures far from the stable species found on Earth. Experimental facilities have made impressive inroads towards pinning down the properties of more exotic, neutron-rich nuclei, but the map of the nuclear chart is far from complete, with the r process being the case we know to have wandered furthest into uncharted territory. We will...

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  3. 2. Nuclear Masses For r-process Nucleosynthesis
    Mengke Li (UC Berkeley)
    11/05/2026, 09:30
  4. 3. The end of the beginning of nuclear masses for the rp-process
    Zach Meisel (Ohio University)
    11/05/2026, 09:55

    In the beginning, X-ray burst modeling was data-poor and the number of high-impact nuclear mass measurement opportunities were many. Today the situation has changed. Opportunities still exist, but they are more subtle, requiring consideration of an expanded set of astrophysical conditions and more complex observables. I will argue that we are not at the end of rp-process nuclear mass...

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  5. 5. TBD
    Nikolai Shchechilin (Universite Libre de Bruxelles)
    11/05/2026, 10:50
  6. 6. Latest developments in the Brussels microscopic mass models
    Luis Gonzáles Miret
    11/05/2026, 11:15

    The rapid neutron-capture process (or r-process) is responsible for the production of about half of the elements heavier than iron in the Universe and
    is expected to take place in neutron star mergers and possibly in exploding
    massive stars. To estimate the composition of the ejecta, a reaction network
    involving about 6000 neutron-rich nuclei with all reactions of interest needs
    to be...

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  7. 7. Nuclear Masses at the Predictive Frontier
    Matthew Mumpower
    11/05/2026, 11:40

    Mass is a fundamental observable in nuclear physics, encoding the integrated effect of nuclear interactions and anchoring a range of applications from astrophysics to tests of the Standard Model. Yet of the roughly 7,000 nuclei expected to be bound, only about half have ever been measured, leaving the rest to be predicted by theory. In this talk I survey today's modeling approaches, noting the...

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  8. 8. Bayesian Model Combination for Nuclear Extrapolation
    Sudhanva Lalit
    11/05/2026, 14:00
  9. 9. TBD
    11/05/2026, 14:25
  10. 10. White Paper coordination
    Alfredo Estrade (CMU), Sam Porter (University of Notre Dame)
    11/05/2026, 14:50
  11. 11. Mass measurements at the S800
    Justin Placido
    12/05/2026, 09:00
  12. 12. Current Capabilities and Future Advancement for Astrophysical Mass Measurements with LEBIT at FRIB
    Hannah Erington (Facility for Rare Isotope Beams (Michigan State University))
    12/05/2026, 09:25

    Determining the exact methods of nucleosynthesis, in which elements are produced by a variety of astrophysical processes, remains a crucial and open question in nuclear science. Nuclear mass data is a key input for astrophysical models, which constrain nucleosynthesis reaction pathways, impacting the abundance distribution of produced isotopes. As such, accurate and precise mass data in exotic...

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  13. 13. Weighing the Nucleus: European Trapped-Ion Efforts for Astrophysics
    Klaus Blaum (Max Planck Society (DE))
    12/05/2026, 09:50

    Precision measurements of nuclear masses provide critical input for modeling nucleosynthesis pathways and the structure of exotic nuclei far from stability. In this talk, I will present recent advances in trapped-ion mass spectrometry across European facilities, highlighting key results and methodological developments that have significantly improved accuracy and reach. A few highlights of how...

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  14. 25. Precision mass measurements for nuclear astrophysics at ATLAS
    Adrian Valverde
    12/05/2026, 10:15

    ATLAS, the Argonne Tandemless Linac Accelerator System, has a long history of precision mass measurements for nuclear astrophysics, most recently focusing on mass measurements for the r-process rare earth peak at CARIBU with the Canadian Penning Trap. Into the next 25 years, ATLAS is developing new capabilities like nuCARIBU and the N=126 Factory which will enable further campaigns of mass...

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  15. 15. White Paper: astrophysics section
    12/05/2026, 11:15
  16. 16. White Paper: theory section
    12/05/2026, 11:30
  17. 17. White Paper: experiments section
    12/05/2026, 11:45
  18. 18. White Paper: data section
    12/05/2026, 12:00
  19. 19. White Paper: astrophysics section
    12/05/2026, 15:50
  20. 20. White Paper: theory section
    12/05/2026, 16:15
  21. 21. White Paper: experiments section
    12/05/2026, 16:40
  22. 22. White Paper: data section
    12/05/2026, 17:05
  23. 23. White Paper: Introduction and conclusions
    13/05/2026, 10:50
  24. 24. White Paper: writing tasks
    13/05/2026, 11:30
  25. 14. Precision mass measurements for nuclear astrophysics at ATLAS
    Adrian Valverde