MEASUREMENT OF ALPHA(S) FROM SCALING VIOLATIONS IN FRAGMENTATION FUNCTIONS IN E(-) ANNIHILATION()E()

Authors
BUSKULIC D CASPER D DEBONIS I DECAMP D GHEZ P GOY C LEES JP LUCOTTE A MINARD MN ODIER P PIETRZYK B ARIZTIZABAL F CHMEISSANI M CRESPO JM EFTHYMIOPOULOS I FERNANDEZ E FERNANDEZBOSMAN M GAITAN V GARRIDO L MARTINEZ M ORTEU S PACHECO A PADILLA C PALLA F PASCUAL A PERLAS JA SANCHEZ F TEUBERT F COLALEO A CREANZA D DEPALMA M FARILLA A GELAO G GIRONE M IASELLI G MAGGI G MAGGI M MARINELLI N NATALI S NUZZO S RANIERI A RASO G ROMANO F RUGGIERI F SELVAGGI G SILVESTRIS L TEMPESTA P ZITO G HUANG X LIN J OUYANG Q WANG T XIE Y XU R XUE S ZHANG J ZHANG L ZHAO W BONVICINI G CATTANEO M COMAS P COYLE P DREVERMANN H ENGELHARDT A FORTY RW FRANK M HAGELBERG R HARVEY J JACOBSEN R JANOT P JOST B KNOBLOCH J LEHRAUS I MARKOU C MARTIN EB MATO P MEINHARD H MINTEN A MIQUEL R OEST T PALAZZI P PATER JR PUSZTASZERI JF RANJARD F RENSING P ROLANDI L SCHLATTER D SCHMELLING M SCHNEIDER O TEJESSY W TOMALIN IR VENTURI A WACHSMUTH H WIEDENMANN W WILDISH T WITZELING W WOTSCHACK J AJALTOUNI Z BARDADINOTWINOWSKA M BARRES A BOYER C FALVARD A GAY P GUICHENEY C HENRARD P JOUSSET J MICHEL B MONTEIL S MONTRET JC PALLIN D PERRET P PODLYSKI F PRORIOL J ROSSIGNOL JM SAADI F FEARNLEY T HANSEN JB HANSEN JD HANSEN JR HANSEN PH NILSSON BS KYRIAKIS A SIMOPOULOU E SIOTIS I VAYAKI A ZACHARIADOU K BLONDEL A BONNEAUD G BRIENT JC BOURDON P PASSALACQUA L ROUGE A RUMPF M TANAKA R VALASSI A VERDERI M VIDEAU H CANDLIN DJ PARSONS MI FOCARDI E PARRINI G CORDEN M DELFINO M GEORGIOPOULOS C JAFFE DE ANTONELLI A BENCIVENNI G BOLOGNA G BOSSI F CAMPANA P CAPON G CHIARELLA V FELICI G LAURELLI P MANNOCCHI G MURTAS F MURTAS GP PEPEALTARELLI M DORRIS SJ HALLEY AW TENHAVE I KNOWLES IG LYNCH JG MORTON WT OSHEA V RAINE C REEVES P SCARR JM SMITH K SMITH MG THOMPSON F THORN S TURNBULL RM BECKER U BRAUN O
Citation
D. Buskulic et al., MEASUREMENT OF ALPHA(S) FROM SCALING VIOLATIONS IN FRAGMENTATION FUNCTIONS IN E(-) ANNIHILATION()E(), Physics letters. Section B, 357(3), 1995, pp. 487-499
Citations number
41
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
357
Issue
3
Year of publication
1995
Pages
487 - 499
Database
ISI
SICI code
0370-2693(1995)357:3<487:MOAFSV>2.0.ZU;2-Z
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 e xtract the fragmentation function for the gluon and for each flavour. The measurements are compared to data from experiments at energies bet ween 22 GeV and 91 GeV and scaling violations consistent with QCD pred ictions are observed. From this, a measurement of the strong coupling constant alpha(s) (M(z)) = 0.126 +/- 0.009 is obtained.