The muon anomalous magnetic moment and a new light gauge boson
classification
✦ hep-ph
hep-ex
keywords
anomalousbosongaugelightmagneticmomentboundscoupling
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It is shown that the 2.6 $\sigma$ discrepancy between the predicted and recently measured value of the anomalous magnetic moment of positive muons could be explained by the existence of a new light gauge boson X with a mass $M_X \leq O(5) GeV$. Phenomenological bounds on the X coupling are discussed.
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