Soft Contributions Stabilize NNLO QCD Corrections to Quarkonium Production and Decay
High Energy Physics - Phenomenology
2026-06-26 v1 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
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 -wave color-singlet quarkonium processes, we achieve substantially improved perturbative convergence and agreement with experimental data.
Keywords
Cite
@article{arxiv.2606.28494,
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},
journal= {arXiv preprint arXiv:2606.28494},
year = {2026}
}
Comments
16 pages, 7 figures, 2 tables