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<p>We calculate a subset of two-loop master integrals relevant for the 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 consider only those families for which the account of the electron mass <i>m</i> is necessary. Our results have the form of the Frobenius series in <i>m</i> with coefficients expressed via Goncharov’s polylogarithms.</p>

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Two-loop master integrals for e+e− → μ+μ− process with account of electron mass

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  • 发表日期：

    2025年2月4日

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  • Roman N. Lee

摘要

We calculate a subset of two-loop master integrals relevant for the differential cross section of e+e− → μ+μ− process. We consider only those families for which the account of the electron mass m is necessary. Our results have the form of the Frobenius series in m with coefficients expressed via Goncharov’s polylogarithms.