| Issue |
EPJ Web Conf.
Volume 342, 2025
14th International Spring Seminar on Nuclear Physics “Cutting-Edge Developments in Nuclear Structure Physics”
|
|
|---|---|---|
| Article Number | 01025 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/epjconf/202534201025 | |
| Published online | 21 November 2025 | |
https://doi.org/10.1051/epjconf/202534201025
High-precision determination of radiative corrections to superallowed nuclear beta decays
1 Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
2 Department of Physics, University of Washington, Seattle, WA 98195-1560, USA
3 Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 21 November 2025
Abstract
Superallowed 0+ → 0+ transitions between T = 1 nuclei have been a perfect avenue avenue for determining the Cabibbo-Kobayashi-Maskawa matrix element Vud, which imposes powerful constraints on physics beyond the Standard Model at low energies. For a long time, the precision of has been limited by uncertainties in radiative corrections that arise from non-perturbative strong interaction physics at both the hadronic and nuclear levels. In this talk, I will describe some recent efforts to pin down these corrections by combining dispersive analysis with experimental data, lattice QCD, and nuclear many-body calculations.
© The Authors, published by EDP Sciences, 2025
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