W. de Boer, T. Kussmaul, IEKP Karlsruhe
Published 1993-09-17, updated 1993-10-07Version 2
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 <= Q^2 <= 8312 GeV^2 and x(= p_h/E_beam) > 0.08 A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alpha_s(Mz) =0.118 +\- 0.005. The corresponding QCD scale for five quark flavours is: Lambda_MS_bar = 230 +/- 60 MeV.
Comments: IEKP-KA/93-8 preprint latex + eps fig (epsf macros)
Z' Search in e+e- Annihilation
Mixing of partial waves near $B^* \bar B^*$ threshold in $e^+e^-$ annihilation
Top Quark Polarization in Polarized $e^+e^-$ Annihilation near Threshold
