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

Gabriel López Castro

doi:10.1088/1674-1137/34/6/017

Chinese Physics C> 2010, Vol. 34> Issue(6) : 712-717 DOI: 10.1088/1674-1137/34/6/017

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

Gabriel López Castro ^,

Departamento de Física, Cinvestav, Apartado Postal 14-740, 07000 México, D.F México

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Abstract：
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 a_μ^hadLO when using τ lepton data. When these corrections are applied to the new combined data on the π^±π⁰ spectral function, the prediction for a_μ^hadLO based on τ lepton data gets closer to the one obtained using e⁺e^－ data.

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Gabriel López Castro. Recent progress on isospin breaking corrections and their impact on the muon g－2 value[J]. Chinese Physics C, 2010, 34(6): 712-717. doi: 10.1088/1674-1137/34/6/017

Gabriel López Castro. Recent progress on isospin breaking corrections and their impact on the muon g－2 value[J]. Chinese Physics C, 2010, 34(6): 712-717. doi: 10.1088/1674-1137/34/6/017 shu

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Received: 2010-02-05
Revised: 1900-01-01

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

Gabriel López Castro ^,

Corresponding author: Gabriel López Castro,

Departamento de Física, Cinvestav, Apartado Postal 14-740, 07000 México, D.F México

Received Date: 2010-02-05
Accepted Date: 1900-01-01
Available Online: 2010-06-05

Abstract:

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 a_μ^hadLO when using τ lepton data. When these corrections are applied to the new combined data on the π^±π⁰ spectral function, the prediction for a_μ^hadLO based on τ lepton data gets closer to the one obtained using e⁺e^－ data.