Looking at radiative corrections to the Σ^±→Λe^± ν̅ semileptonic decay-rate ratio

@misc{alexandrou2026looking,
  title = {{Looking at radiative corrections to the $Σ^\pm\toΛe^\pm \barν$ semileptonic decay-rate ratio}},
  author = {Constantia Alexandrou and Simone Bacchio and Antonio Evangelista and Andreas Konstantinou and Nazario Tantalo},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.03183},
  eprint = {2610.03183},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.03183},
  note = {CC BY-NC-ND 4.0},
}

TY  - UNPB
TI  - Looking at radiative corrections to the Σ^±→Λe^± ν̅ semileptonic decay-rate ratio
AU  - Constantia Alexandrou
AU  - Simone Bacchio
AU  - Antonio Evangelista
AU  - Andreas Konstantinou
AU  - Nazario Tantalo
PY  - 2026
DA  - 2026/10/02
PB  - arXiv
DO  - 10.48550/arxiv.2610.03183
UR  - https://arxiv.org/abs/2610.03183
AB  - We investigate the impact of radiative corrections on the ratio of the semileptonic decay rates Σ^±→Λe^± ν̅. Phenomenological analyses point to sizable radiative effects on the experimentally measured ratio. From a theoretical perspective, this observable is particularly appealing because several hadronic and electroweak contributions partially cancel in the ratio, providing a cleaner probe of electromagnetic effects. We identify the dominant contributions to the radiative corrections and develop the framework for a dedicated calculation. This represents a first step toward a precise theoretical description of baryon semileptonic decays, helping to assess their potential as precision tests of the Standard Model.
ER  -