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

TL;DR

This paper critiques a recent model-dependent analysis of e+e- to pi+pi- data used to estimate the muon g-2, arguing that a model-independent comparison contradicts its conclusions and questions the reliability of its results.

Contribution

It provides a direct, model-independent comparison of experimental data, challenging prior claims of inconsistency and questioning the derived muon g-2 estimates.

Findings

Model-independent data comparison contradicts previous claims.

Discrepancies identified with the referenced model-based analysis.

Questions raised about the reliability of the muon g-2 prediction.

Abstract

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.