QCD bounds on leading-order hadronic vacuum polarization contributions to the muon anomalous magnetic moment
| Autor: | Li, Siyuan, Steele, T. G., Ho, J., Raza, R., Williams, K., Kleiv, R. T. |
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| Rok vydání: | 2024 |
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| Druh dokumentu: | Working Paper |
| Popis: | QCD bounds on the leading-order (LO) hadronic vacuum polarization (HVP) contribution to the anomalous magnetic moment of the muon ($a_\mu^{\mathrm{HVP,LO}}$, $a_\mu=\left(g-2\right)_\mu/2$) are determined by imposing H\"older inequalities and related inequality constraints on systems of Finite-Energy QCD sum-rules. This novel methodology is complementary to lattice QCD and data-driven approaches to determining $a_\mu^{\mathrm{HVP,LO}}$. For the light-quark ($u,d,s$) contributions up to five-loop order in perturbation theory in the chiral limit, LO in light-quark mass corrections, next-to-leading order in dimension-four QCD condensates, and to LO in dimension-six QCD condensates, we find that $\left(657.0\pm 34.8\right)\times 10^{-10}\leq a_\mu^{\mathrm{HVP,LO}} \leq \left(788.4\pm 41.8\right)\times10^{-10}\,$, bridging the range between lattice QCD and data-driven values. Comment: 17 pages, 4 figures. v2 contains extended analysis and discussion |
| Databáze: | arXiv |
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