Technology
Physicists Resolve Muon g-2 Anomaly, But New Conflict Emerges With Older Data Follow-up
Fermilab's Muon g-2 experiment released its final measurement in June 2025, confirming the muon's magnetic anomaly at 5.1σ against the data-driven Standard Model prediction. The result shifts the crisis from experiment-theory tension to a clash between lattice QCD and dispersive theory methods.