Lattice QCD with High Precision

Zoltan Fodor (), Fabian Frech, Christian Hoelbling () and Balint Toth
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Zoltan Fodor: Wuppertal University, Department of Physics
Fabian Frech: Wuppertal University, Department of Physics
Christian Hoelbling: Wuppertal University, Department of Physics
Balint Toth: Wuppertal University, Department of Physics

A chapter in High Performance Computing in Science and Engineering '23, 2026, pp 17-27 from Springer

Abstract: Abstract In 2021 an experiment at the Fermi National Accelerator Laboratory (FNAL) near Chicago confirmed a puzzling discrepancy regarding an elementary particle, called muon. The event received significant media attention. On the same day, our ab-initio calculation was published in Nature, challenging previous computations and bringing the theoretical prediction closer to the experimental value: no new forces or particles may be needed to explain the FNAL measurement. Ours is the most precise ab-initio calculation so far, with uncertainties comparable to those of the measurement and of the reference, data-driven computations. These computations were carried out -among other resources- using previous allocations on HAWK.

Date: 2026
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DOI: 10.1007/978-3-031-91312-9_2

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