High-precision determination of radiative corrections to superallowed nuclear beta decays
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912546422784000 |
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| author | Seng, Chien-Yeah |
| author_facet | Seng, Chien-Yeah |
| contents | Superallowed $0^+\rightarrow 0^+$ transitions between $T=1$ nuclei have been a perfect avenue avenue for determining the Cabibbo-Kobayashi-Maskawa matrix element $V_{ud}$, which imposes powerful constraints on physics beyond the Standard Model at low energies. For a long time, the precision of $V_{ud}$ 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_15203 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-precision determination of radiative corrections to superallowed nuclear beta decays Seng, Chien-Yeah Nuclear Theory High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Experiment Superallowed $0^+\rightarrow 0^+$ transitions between $T=1$ nuclei have been a perfect avenue avenue for determining the Cabibbo-Kobayashi-Maskawa matrix element $V_{ud}$, which imposes powerful constraints on physics beyond the Standard Model at low energies. For a long time, the precision of $V_{ud}$ 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. |
| title | High-precision determination of radiative corrections to superallowed nuclear beta decays |
| topic | Nuclear Theory High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2508.15203 |