Abstract
Higher-order QED radiative corrections to the muon decay spectrum are evaluated within the QED structure function approach in the next-to-leading-order logarithmic approximation. New analytical results are given in the O(α3ln2(mμ2/me2)) order. Earlier results in the O(α2ln1(mμ2/me2)) and O(α3ln3(mμ2/me2)) orders are partially corrected. Numerical estimates of different contributions are presented. Published by the American Physical Society 2024
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