Title of article
Measurement of αs from scaling violations in fragmentation functions in e+e− annihilation
Author/Authors
ALEPH Collaboration، نويسنده , , D Buskulic، نويسنده , , D Casper، نويسنده , , I De Bonis، نويسنده , , D Decamp، نويسنده , , P Ghez، نويسنده , , C Goy، نويسنده , , J.-P Lees، نويسنده , , A Lucotte، نويسنده , , M.-N Minard، نويسنده , , P Odier، نويسنده , , B Pietrzyk، نويسنده , , F. Ariztizabal، نويسنده , , M. Chmeissani، نويسنده , , J.M. Crespo، نويسنده , , I Efthymiopoulos، نويسنده , , E Fernandez، نويسنده , , M. Fernandez-Bosman، نويسنده , , V Gaitan، نويسنده , , Ll. Garrido، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1995
Pages
13
From page
487
To page
499
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.
Journal title
PHYSICS LETTERS B
Serial Year
1995
Journal title
PHYSICS LETTERS B
Record number
905576
Link To Document