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Main Authors: del Pino, Adrián, Clarke, David A., DeTar, Carleton, El-Khadra, Aida X., Gámiz, Elvira, Gottlieb, Steven, Grebe, Anthony V., Hostetler, Leon, Jay, William I., Kronfeld, Andreas S., Lahert, Shaun, Laiho, Jack, Lynch, Michael, Lytle, Andrew T., Neil, Ethan T., Peterson, Curtis T., Simone, James N., Sitison, Jacob W., Van de Water, Ruth S., Vaquero, Alejandro
Format: Preprint
Published: 2026
Subjects:
High Energy Physics - Lattice
Online Access:https://arxiv.org/abs/2604.22349
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Table of Contents:
  • We present preliminary results from a lattice-QCD study of the hadronic contributions to the running of the electromagnetic coupling, $Δα(Q^2)$, and the electroweak mixing angle, $Δ\sin^2θ_{W}(Q^2)$. Using $N_f = 2+1+1$ HISQ ensembles at physical quark masses, we discuss the challenges posed by strong statistical correlations in the time-momentum representation and propose a spectral-reconstruction strategy to obtain controlled continuum-extrapolated results across the full energy range.

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