On the time momentum representation of hadronic vacuum polarization and g μ − 2

David Greynat (Grenoble, France) ; Eduardo Rafael (Aix-Marseille Univ, Université de Toulon, CNRS, CPT, Marseille, France)

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 g μ – 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 g μ – 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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      "value": "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 g  \u03bc  \u2013 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 g  \u03bc  \u2013 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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Published on:
30 March 2023
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2023 (2023)
Issue 3
Pages 1-30
DOI:
https://doi.org/10.1007/JHEP03(2023)248
arXiv:
2302.01692
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: