@Article{Davier_etal2023,
author="Davier, M.
and Diaz-Calderon, D.
and Malaescu, B.
and Pich, A.
and Rodriguez-Sanchez, A.
and Zhang, Z.",
title="The Euclidean Adler function and its interplay with Delta alpha(had)(QED) and alpha(s)",
journal="Journal of High Energy Physics",
year="2023",
publisher="Springer",
volume="04",
number="4",
pages="067--57pp",
optkeywords="Correlation Functions; Effective Field Theories of QCD; The Strong Coupling",
abstract="Three different approaches to precisely describe the Adler function in the Euclidean regime at around 2 GeVs are available: dispersion relations based on the hadronic production data in e(+)e(-) annihilation, lattice simulations and perturbative QCD (pQCD). We make a comprehensive study of the perturbative approach, supplemented with the leading power corrections in the operator product expansion. All known contributions are included, with a careful assessment of uncertainties. The pQCD predictions are compared with the Adler functions extracted from ?a( QED)(had)(Q(2)), using both the DHMZ compilation of e(+)e(-) data and published lattice results. Taking as input the FLAG value of a(s), the pQCD Adler function turns out to be in good agreement with the lattice data, while the dispersive results lie systematically below them. Finally, we explore the sensitivity to a(s) of the direct comparison between the data-driven, lattice and QCD Euclidean Adler functions. The precision with which the renormalisation group equation can be tested is also evaluated.",
optnote="WOS:000985363600002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5533), last updated on Fri, 02 Jun 2023 06:52:02 +0000",
issn="1029-8479",
doi="10.1007/JHEP04(2023)067",
opturl="https://arxiv.org/abs/2302.01359",
opturl="https://doi.org/10.1007/JHEP04(2023)067",
language="English"
}