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Precise QCD Predictions for Hadron-in-jet Production in e^+e^- Collisions

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arxiv 2602.12344 v2 pith:7UNB6WNN submitted 2026-02-12 hep-ph

Precise QCD Predictions for Hadron-in-jet Production in e^+e^- Collisions

classification hep-ph
keywords jetsproductionmathrmpredictionsalephallowsannihilationclean
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The production of identified hadrons inside jets in $e^+ e^-$ annihilation allows for detailed studies of parton-to-hadron fragmentation functions in a clean environment. We compute hadron-in-jets production cross sections for $e^+e^- \to 2\,\mathrm{jets}$ and $e^+e^- \to 3\,\mathrm{jets}$ to next-to-next-to-leading order (NNLO) in perturbative QCD. By comparing with data from the ALEPH experiment, we demonstrate the implications of the newly computed theory predictions for precision phenomenology.

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Cited by 2 Pith papers

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    A workshop summary report outlines discussion topics in perturbative QCD, nuclear structure, and related techniques for the upcoming Electron-Ion Collider.