Muon mystery solved: precision calc keeps the Standard Model intact
A Nature paper using lattice QCD and hybrid simulations shows the muon's anomalous magnetic moment is consistent with the Standard Model within about half a standard deviation and 11 decimal places. The result suggests the earlier discrepancy hinting at a fifth force was a calculation artefact, not new physics, while tightening constraints on possible beyond‑SM explanations through a precise treatment of hadronic vacuum polarization.