Abstract
We propose a new set of model independent approximants adapted to the time momentum representation (TMR) of hadronic vacuum polarization (HVP) and its contribution to gμ – 2. They provide a way to extrapolate lattice QCD (LQCD) results obtained in an optimal time-region, to the full range required for an evaluation of the HVP contribution to gμ – 2. They offer as well a new way to confront LQCD results in restricted TMR regions, with the full contribution obtained from data driven determinations.
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Greynat, D., de Rafael, E. On the time momentum representation of hadronic vacuum polarization and gμ − 2. J. High Energ. Phys. 2023, 248 (2023). https://doi.org/10.1007/JHEP03(2023)248
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DOI: https://doi.org/10.1007/JHEP03(2023)248