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Master integrals for two-loop $C$-odd contribution to $e^+e^-\to \ell^+\ell^-$ process

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arxiv 1901.04441 v2 pith:EPPPZFXA submitted 2019-01-14 hep-ph

Roman N. Lee , Kirill T. Mingulov This is my paper · ORCID
classification hep-ph
keywords integralsmastercorrespondingprocesstwo-loopannihilationapplicablecalculate
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We calculate two-loop master integrals for the process of heavy lepton pair production in $e^+e^-$ collisions. We consider the $C$-odd diagrams with three photons in the intermediate state and evaluate the corresponding families of the master integrals in the limit of zero electron mass. Our results for the master integrals are directly applicable in the whole physical region corresponding to the annihilation channel.

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  1. Two-loop master integrals for $e^{+}e^{-}\rightarrow\mu^+\mu^-$ process with account of electron mass

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Two-loop master integrals for e+e−→μ+μ− that require an electron-mass regulator are computed as a Frobenius expansion in the electron mass.

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