Recent progress on isospin breaking corrections and their impact on the muon g-2 value

Details Recent progress on isospin breaking corrections and their impact on the muon g-2 value Recent progress on isospin breaking corrections and their impact on the muon g-2 value

2010-01-21

arxiv.org/abs/1001.3703v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 3 figures, Proceedings of the PhiPsi09 Workshop, Oct. 13-16, 2009, Beijing, China. Some typos corrected, and the FSR

Scientific paper

We describe some recent results on isospin breaking corrections which are of relevance for predictions of the leading order hadronic contribution to the muon anomalous magnetic moment (amuhadLO) when using tau lepton data. When these corrections are applied to the new combined data on the pi^+pi^0 spectral function, the prediction for amuhadLO based on tau lepton data gets closer to the one obtained using e^+e^- data.

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