QED corrections to the parity-violating asymmetry in high-energy electron-nucleus collisions
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908361238249472 |
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| author | Roca-Maza, Xavier Jakubassa-Amundsen, D H. |
| author_facet | Roca-Maza, Xavier Jakubassa-Amundsen, D H. |
| contents | The parity-violating asymmetry, including leading-order QED corrections to the Coulomb potential, is calculated non-perturbatively by solving the Dirac equation. At GeV collision energies and forward scattering angles, QED effects enhance the asymmetry by approximately 5% for the recently measured nuclei 27Al, 48Ca, and 208Pb. The corrections result in a shift of the estimated neutron radius, leading to an increase in the inferred neutron skin thicknesses of these nuclei and, thus, to the pressure neutrons feel around nuclear saturation density. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_14375 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | QED corrections to the parity-violating asymmetry in high-energy electron-nucleus collisions Roca-Maza, Xavier Jakubassa-Amundsen, D H. Nuclear Theory Nuclear Experiment The parity-violating asymmetry, including leading-order QED corrections to the Coulomb potential, is calculated non-perturbatively by solving the Dirac equation. At GeV collision energies and forward scattering angles, QED effects enhance the asymmetry by approximately 5% for the recently measured nuclei 27Al, 48Ca, and 208Pb. The corrections result in a shift of the estimated neutron radius, leading to an increase in the inferred neutron skin thicknesses of these nuclei and, thus, to the pressure neutrons feel around nuclear saturation density. |
| title | QED corrections to the parity-violating asymmetry in high-energy electron-nucleus collisions |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2501.14375 |