PreprintCC BY 4.0arXiv
NNLO initial-state corrections to e+ e-→μ+ μ- γ
Abstract
We present initial-state corrections to e+ e-→μ+ μ- γ at next-to-next-to-leading-order in QED for several experimentally motivated scenarios up to a few GeV. We include photonic as well as vacuum-polarisation corrections into the Monte Carlo framework McMule that allows for the calculation of arbitrary infrared-safe observables. For the total cross sections, the corrections are typically below the percent level, but they can be locally larger in distributions. The vacuum-polarisation corrections are of similar size and must not be neglected, in particular for larger centre-of-mass energies.
Related
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BibTeX
@misc{fang2026nnlo,
title = {{NNLO initial-state corrections to $e^+\,e^-\toμ^+\,μ^-\,γ$}},
author = {Yizhou Fang and Sara Gündogdu and Sophie Kollatzsch and Marco Rocco and Adrian Signer and Yannick Ulrich},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.09680},
eprint = {2610.09680},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.09680},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - NNLO initial-state corrections to e^+ e^-→μ^+ μ^- γ
AU - Yizhou Fang
AU - Sara Gündogdu
AU - Sophie Kollatzsch
AU - Marco Rocco
AU - Adrian Signer
AU - Yannick Ulrich
PY - 2026
DA - 2026/10/07
PB - arXiv
DO - 10.48550/arxiv.2610.09680
UR - https://arxiv.org/abs/2610.09680
AB - We present initial-state corrections to e^+ e^-→μ^+ μ^- γ at next-to-next-to-leading-order in QED for several experimentally motivated scenarios up to a few GeV. We include photonic as well as vacuum-polarisation corrections into the Monte Carlo framework McMule that allows for the calculation of arbitrary infrared-safe observables. For the total cross sections, the corrections are typically below the percent level, but they can be locally larger in distributions. The vacuum-polarisation corrections are of similar size and must not be neglected, in particular for larger centre-of-mass energies.
ER -