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<p>We calculate the NNLO QED corrections to the <i>C</i>-even part of differential cross section of <i>e</i><sup>+</sup><i>e</i><sup><i>−</i></sup> → <i>μ</i><sup>+</sup><i>μ</i><sup><i>−</i></sup> process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov’s polylogarithms.</p>

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Electron-positron annihilation into heavy leptons at two loops

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  • 发表日期：

    2025年8月18日

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  • Roman E. Gerasimov,
  • Petr A. Krachkov,
  • Roman N. Lee

摘要

We calculate the NNLO QED corrections to the C-even part of differential cross section of e+e− → μ+μ− process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov’s polylogarithms.