Perturbative contributions to Δ α 5 M Z 2 $$ \Delta {\alpha}^{(5)}\left({M}_Z^2\right) $$
Abstract We compute a theoretically driven prediction for the hadronic contribution to the electromagnetic running coupling at the Z scale using lattice QCD and state-of-the-art perturbative QCD. We obtain Δ α 5 M Z 2 = 279.5 ± 0.9 ± 0.59 × 10 − 4 Mainz Collaboration Δ α 5 M Z 2 = 278.42 ± 0.22 ± 0....
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2023)131 |