Friday, June 28, 2013

1306.6374 (Michel Davier et al.)

Comments on "An Update of the HLS Estimate of the Muon g-2"by M.Benayoun
{\it et al.}, arXiv:1210.7184v3

Michel Davier, Bogdan Malaescu
In a recent paper \cite{benayoun} M.Benayoun {\it et al.} use a specific model to compare results on the existing data for the cross section of the process $e^+e^-\rightarrow \pi^+\pi^-$ and state conclusions about the inconsistency of the BABAR results with those from the other experiments. We show that a direct model-independent comparison of the data at hand contradicts this claim. Clear discrepancies with the results of Ref. \cite{benayoun} are pointed out. As a consequence we do not believe that the lower value and the smaller uncertainty obtained for the prediction of the muon magnetic anomaly are reliable results.
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