Erratum to: A check of quantum electrodynamics and of electron-muon equivalence
Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields(2008)
摘要
Summary A study of the timelike reaction e+e-→μ∓μ± and of its comparison with the spacelike dominated reaction e+e−→e±e± allows us to establish the validity of QED in terms of production angular distributions, absolute rates, energy dependence
and angular correlations between the pair of final-state leptons, in two very different ranges of invariant four-momentum
transfer. No sign of QED break is detected in the electromagnetic interaction of leptons and the muon behaves like a heavy
electron, within the accuracy of the present investigation.
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关键词
quantum electrodynamics,positrons,momentum transfer,electrons
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