Eur. Phys. J. C 6, 19-33
DOI 10.1007/s100529801013
Measurement of the quark and gluon fragmentation functions
in Z0 hadronic decays
DELPHI Collaboration
P.Abreu21 et al.
21 LIP, IST, FCUL - Av. Elias Garcia, 14-1o, P-1000 Lisboa Codex, Portugal
Received: 12 September 1997 / Published online: 19 October 1998
Abstract
The transverse, longitudinal and asymmetric components of the
fragmentation function are measured from the inclusive charged particles
produced in e+e- collisions at LEP. As in deep inelastic
scattering,
these data are important for tests of QCD.
The transverse and longitudinal
components of the total hadronic cross section
are evaluated from the measured fragmentation functions. They are found to be
and
respectively.
The strong coupling constant is calculated from
in next-to-leading order of perturbative QCD,
giving

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