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<p>We suggest a universal QCD-motivated expression for the Polyakov-KNO multiplicity distributions of hadrons in jets and compare it with data from <i>e</i><sup>+</sup><i>e</i><sup><i>−</i></sup> annihilation experiments. The moments and overall shape of the distributions in full events and quark and gluon jets, over a range of energies, are described with reasonable quantitative precision. In particular, the scaling violation predicted by QCD is seen clearly in the moments and high-multiplicity fluctuations.</p>

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QCD-inspired description of multiplicity distributions in jets

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月14日

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  • Yu. L. Dokshitzer,
  • B. R. Webber

摘要

We suggest a universal QCD-motivated expression for the Polyakov-KNO multiplicity distributions of hadrons in jets and compare it with data from e+e− annihilation experiments. The moments and overall shape of the distributions in full events and quark and gluon jets, over a range of energies, are described with reasonable quantitative precision. In particular, the scaling violation predicted by QCD is seen clearly in the moments and high-multiplicity fluctuations.