Isospin Violation and the Magnetic Moment of the Muon
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We calculate the leading isospin-violating and electromagnetic corrections for the decay tau --> pi^0 pi nu_tau at low energies. The corrections are small but relevant for the inclusion of tau decay data in the determination of hadronic vacuum polarization especially for the anomalous magnetic moment of the muon.
5 pages, 1 figure, Talk presented at the International Europhysics Conference on HEP, Budapest, Hungary, July 12-18 2001
5 pages, 1 figure, Talk presented at the International Europhysics Conference on HEP, Budapest, Hungary, July 12-18 2001