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Scaling Violation in the Fragmentation Functions in e+e- Annihilation

1993/09/17 by W. De Boer, de Boer, W., T. Kussmaul +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.hep-ph/9309280

openalex publication_date 1993/09/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A determination of the hadronic fragmentation functions of the Z-boson is presented from a study of the inclusive hadron production wit the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 <= Q2 <= 8312 GeV2 and x(= ph/Ebeam) > 0.08 A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alphas(Mz) =0.118 +\- 0.005. The corresponding QCD scale for five quark flavours is: LambdaMSbar = 230 +/- 60 MeV.

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