Electron-positron annihilation into heavy leptons at two loops

Key Points

• The NNLO QED corrections reveal a notable change in the differential cross section for heavy leptons.
• Calculations indicate that Goncharov’s polylogarithms effectively describe the outcomes of this electron-positron interaction.
• This analysis neglects mass power corrections, focusing solely on the complexity of the QED corrections.
• The findings may enhance understanding of heavy lepton dynamics in particle physics, warranting further exploration.