Measurement of alpha-s from scaling violations in fragmentation functions in e+ e- annihilation

UNSPECIFIED (1995) Measurement of alpha-s from scaling violations in fragmentation functions in e+ e- annihilation. Physics Letters B, 357 (3). pp. 487-499. ISSN 0370-2693

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Abstract

A study of scaling violations in fragmentation functions performed by the ALEPH collaboration at LEP is presented. Data samples enriched in uds, c, b and gluon jets, respectively, together with measurements of the longitudinal and transverse inclusive cross sections are used to extract the fragmentation function for the gluon and for each flavour. The measurements are compared to data from experiments at energies between 22 GeV and 91 GeV and scaling violations consistent with QCD predictions are observed. From this, a measurement of the strong coupling constant αs(Mz) = 0.126 ±0.009 is obtained.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? nuclear and high energy physics ??
ID Code:
64068
Deposited By:
Deposited On:
09 May 2013 13:39
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 13:51