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Single-inclusive hadron production in electron-positron annihilation at next-to-next-to-next-to-leading order in QCD

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arxiv 2503.20441 v2 pith:4ERQBX47 submitted 2025-03-26 hep-ph

Chuan-Qi He , Hongxi Xing , Tong-Zhi Yang , Hua Xing Zhu This is my paper
classification hep-ph
keywords hadronproductionachievingannihilationcorrectionselectron-positronfunctionshadronization
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Single-inclusive hadron production in electron-positron annihilation (SIA) represents the cleanest process for investigating the dynamics of parton hadronization, as encapsulated in parton fragmentation functions. In this letter, we present, for the first time, the analytical computation of Quantum Chromodynamics (QCD) corrections to the coefficient functions for SIA at next-to-next-to-next-to-leading order (N$^3$LO) accuracy, achieving the highest precision to date for hadron production processes. Utilizing the BaBar measurement as a benchmark, we assess the phenomenological implications of this high-precision calculation. Our findings demonstrate a substantial reduction in scale uncertainties at N$^3$LO and offer an improved description of the experimental data compared to lower-order calculations. This advancement underscores the importance of higher-order corrections in achieving a more accurate understanding of hadronization processes.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    hep-ph 2026-02 conditional novelty 6.0 of 10

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    hep-ph 2025-09 accept novelty 4.0 of 10

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