First NNLO QCD calculation of the ³S₁⁽⁸⁾ gluon fragmentation function in NRQCD, yielding positive substantial corrections and endpoint logarithms for threshold resummation.
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hep-ph 2years
2026 2verdicts
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Resummed quarkonium fragmentation functions are derived to all orders in perturbation theory, resolving threshold singularities without nonperturbative model functions.
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Next-to-next-to-leading-order QCD corrections to ${}^3S_1^{(8)}$ gluon fragmentation function for quarkonium
First NNLO QCD calculation of the ³S₁⁽⁸⁾ gluon fragmentation function in NRQCD, yielding positive substantial corrections and endpoint logarithms for threshold resummation.
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Resummation of threshold double logarithms in quarkonium fragmentation functions
Resummed quarkonium fragmentation functions are derived to all orders in perturbation theory, resolving threshold singularities without nonperturbative model functions.