Low energy exclusive e+e− → hadrons cross sections and g − 2 of the muon
Department of Physics and Astronomy, University of California, Riverside, CA 92521, USA
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Published online: 12 April 2017
The 3.5 standard deviation discrepancy between the standard model prediction for the muon anomalous magnetic moment g−2 and the corresponding experimental measurementis one of the most intriguing potential signals for physics beyond the standard model. The largest uncertainty in the standard model prediction for the muon g − 2 arises from uncertainties in the measured low-energy e+e− → hadrons cross sections. New cross section results from the Babar experiment at SLAC for e+ e− → π+π−π0π0 and for e+e− → KKππ channels are presented that significantly reduce some of the uncertaintiesin the standard model prediction for the muon g − 2.
© The Authors, published by EDP Sciences, 2017
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