The muon anomalous magnetic moment and a new light gauge boson
S. N. Gninenko, N. V. Krasnikov
Abstract
It is shown that the 2.6 σ 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 MX ≤ O(5) GeV. Phenomenological bounds on the X coupling are discussed.
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