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arXiv · 2507.07691

QCD-inspired description of multiplicity distributions in jets

Yu. L. Dokshitzer·B. R. Webber
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Abstract

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.

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Yu. L. Dokshitzer, B. R. Webber. 2025-07-10. QCD-inspired description of multiplicity distributions in jets. https://arxiv.org/abs/2507.07691

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