Hybrid analysis of radiative corrections to neutron decay with current algebra and effective field theory
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916330791239680 |
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| author | Seng, Chien-Yeah |
| author_facet | Seng, Chien-Yeah |
| contents | We introduce a useful framework for high-precision studies of the neutron beta decay by merging the current algebra description and the fixed-order effective field theory calculation of the electroweak radiative corrections to the neutron axial form factor. We discuss the advantages of this hybrid method and show that it only requires a minimal amount of lattice QCD inputs to achieve a $10^{-4}$ theory accuracy for the Standard Model prediction of the neutron lifetime and the axial-to-vector coupling ratio $λ$, both important to the search for physics beyond the Standard Model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_08976 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hybrid analysis of radiative corrections to neutron decay with current algebra and effective field theory Seng, Chien-Yeah High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory We introduce a useful framework for high-precision studies of the neutron beta decay by merging the current algebra description and the fixed-order effective field theory calculation of the electroweak radiative corrections to the neutron axial form factor. We discuss the advantages of this hybrid method and show that it only requires a minimal amount of lattice QCD inputs to achieve a $10^{-4}$ theory accuracy for the Standard Model prediction of the neutron lifetime and the axial-to-vector coupling ratio $λ$, both important to the search for physics beyond the Standard Model. |
| title | Hybrid analysis of radiative corrections to neutron decay with current algebra and effective field theory |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2403.08976 |