Probing hidden sectors with a muon beam: Implication of spin-0 dark matter mediators for the muon ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:math> ) anomaly and the validity of the Weiszäcker-Williams approach
Physical review. D/Physical review. D.