Electron-positron annihilation into heavy leptons at two loops

Roman E. Gerasimov; Petr A. Krachkov; Roman N. Lee

Electron-positron annihilation into heavy leptons at two loops

High Energy Physics - Phenomenology 2025-05-15 v3

Authors: Roman E. Gerasimov , Petr A. Krachkov , Roman N. Lee

Abstract

We calculate the NNLO QED corrections to the $C$ -even part of differential cross section of $e^+e^- \to \mu^+\mu^-$ process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov's polylogarithms.

Keywords

radiative corrections in particle physics next-to-leading order qcd

Cite

@article{arxiv.2503.09245,
  title  = {Electron-positron annihilation into heavy leptons at two loops},
  author = {Roman E. Gerasimov and Petr A. Krachkov and Roman N. Lee},
  journal= {arXiv preprint arXiv:2503.09245},
  year   = {2025}
}

Comments

26 pages, Minor typos corrected, one figure added. Agreement with Ref. [18] of the contribution to the form factor from another flavor is stated. Results unchanged

Electron-positron annihilation into heavy leptons at two loops

Abstract

Keywords

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