Observational analysis compares QCD-inspired multiplicity distributions in jets with experimental data, indicating significant scaling violations.
A bstract 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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Dokshitzer et al. (2025) studied this question.
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