PreprintCC BY 4.0arXiv
Soft Contributions Stabilize NNLO QCD Corrections to Quarkonium Production and Decay
Abstract
Next-to-next-to-leading order (NNLO) QCD corrections to quarkonium production and decay are known to exhibit perturbative instabilities within non-relativistic QCD. We identify the origin of this problem and propose a simple remedy. Applying our approach to S-wave color-singlet quarkonium processes, we achieve substantially improved perturbative convergence and agreement with experimental data.
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BibTeX
@misc{maxia2026soft,
title = {{Soft Contributions Stabilize NNLO QCD Corrections to Quarkonium Production and Decay}},
author = {Luca Maxia and Hua-Sheng Shao and Lukas Simon and Guoxing Wang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2606.28494},
eprint = {2606.28494},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.28494},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Soft Contributions Stabilize NNLO QCD Corrections to Quarkonium Production and Decay
AU - Luca Maxia
AU - Hua-Sheng Shao
AU - Lukas Simon
AU - Guoxing Wang
PY - 2026
DA - 2026/09/24
PB - arXiv
DO - 10.48550/arxiv.2606.28494
UR - https://arxiv.org/abs/2606.28494
AB - Next-to-next-to-leading order (NNLO) QCD corrections to quarkonium production and decay are known to exhibit perturbative instabilities within non-relativistic QCD. We identify the origin of this problem and propose a simple remedy. Applying our approach to S-wave color-singlet quarkonium processes, we achieve substantially improved perturbative convergence and agreement with experimental data.
ER -