Summary
This comprehensive review examines the muon's anomalous magnetic moment as a window into physics beyond the Standard Model, leveraging final Fermilab g-2 results and updated theoretical calculations. The authors provide both accessible overviews and detailed model-independent formulas, classifying BSM scenarios and exploring connections to dark matter, electroweak physics, neutrino physics, and collider observables. The work identifies viable and excluded parameter regions across multiple well-motivated BSM candidates including dark photons, axion-like particles, supersymmetric models, and leptoquark scenarios.
Key measures
Anomalous magnetic moment of the muon (a_μ); Standard Model value; BSM parameter spaces; constraints from complementary observables
Outcomes reported
This review examines the anomalous magnetic moment of the muon (a_μ) as a probe of Beyond Standard Model physics, synthesising results from the Fermilab g-2 experiment and updated Standard Model calculations. The paper surveys connections between muon magnetic moment measurements and a broad range of other observables and beyond-Standard-Model scenarios.
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