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A measurement of alpha(s) from the scaling violation in e(+)e(-) annihilation

Abstract:

The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from Z0 decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at energies between 14 GeV and 91 GeV. A large scaling violation is observed, which is used to extract the strong coupling constant from a fit using a numerical integration of the second order DGLAP evolution equations. The result is αs(Mz) = 0.124...

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Publication status:
Published

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Journal:
PHYSICS LETTERS B
Volume:
398
Issue:
1-2
Pages:
194-206
Publication date:
1997-04-10
DOI:
ISSN:
0370-2693
URN:
uuid:52d2ba7b-a7ef-46df-946e-1d037655ecea
Source identifiers:
5585
Local pid:
pubs:5585
Language:
English

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