Electroweak Radiative Corrections to Semileptonic Tau Decays

Details Electroweak Radiative Corrections to Semileptonic Tau Decays Electroweak Radiative Corrections to Semileptonic Tau Decays

2002-11-22

arxiv.org/abs/hep-ph/0211345v2

Rev.Mex.Fis. 50 (2004) 200-202

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages

Scientific paper

I present an update on the electroweak radiative correction factor to semileptonic tau decays, including a next-to-leading order resummation of large logarithms. My result differs both qualitatively and quantitatively from the one recently obtained by Davier et al. As two consequences, (i) the discrepancy between the predictions for the muon g-2 based on tau decay data and electron-positron annihilation data increases, and (ii) the g-2 prediction based on tau decay data appears to be consistent (within about one standard deviation) with the experimental result from BNL.

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