The muon anomalous magnetic moment (a_μ) is one of the most precisely measured quantities in particle physics. A recent experiment at Brookhaven measured it with a 14-fold improvement in precision, reaching 0.54 ppm. This result shows a 3.2 standard deviation discrepancy between theory and experiment, indicating a possible deviation from the Standard Model (SM). This discrepancy is the largest established deviation from the SM in a clean electroweak observable and could signal new physics. The discrepancy has prompted numerous theoretical efforts to improve the prediction of a_μ, particularly focusing on hadronic vacuum polarization and light-by-light scattering effects. New hadronic cross section measurements have reduced the uncertainty in the prediction. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's sensitivity to new physics is higher than that of the electron due to its larger mass. The muon g-2 experiment is a crucial tool for testing the SM and searching for new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probeThe muon anomalous magnetic moment (a_μ) is one of the most precisely measured quantities in particle physics. A recent experiment at Brookhaven measured it with a 14-fold improvement in precision, reaching 0.54 ppm. This result shows a 3.2 standard deviation discrepancy between theory and experiment, indicating a possible deviation from the Standard Model (SM). This discrepancy is the largest established deviation from the SM in a clean electroweak observable and could signal new physics. The discrepancy has prompted numerous theoretical efforts to improve the prediction of a_μ, particularly focusing on hadronic vacuum polarization and light-by-light scattering effects. New hadronic cross section measurements have reduced the uncertainty in the prediction. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's sensitivity to new physics is higher than that of the electron due to its larger mass. The muon g-2 experiment is a crucial tool for testing the SM and searching for new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe. The muon g-2 experiment is a key test of the SM and a potential probe of new physics. The muon's magnetic moment is sensitive to new physics effects, making it a valuable probe