MEASUREMENT OF SCALING VIOLATIONS IN FRAGMENTATION FUNCTIONS IN E(+)E(-) ANNIHILATION

被引：1

作者：

PADILLA, C ^{[1
]}

机构：

[1] UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES,E-08193 BARCELONA,SPAIN

来源：

NUCLEAR PHYSICS B | 1995年

关键词：

D O I：

10.1016/0920-5632(95)00064-G

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A study of scaling violations in fragmentation functions is presented. ALEPH data samples enriched in b jets, u,d,s jets and gluon jets, respectively, together with measurements of the longitudinal and transverse inclusive cross sections, are used to extract the fragmentation functions for each flavour. Comparing these measurements to lower energy data (PEP, PETRA and TRISTAN), scaling violations consistent with QCD are observed and a measurement of the strong coupling constant alpha(s)(M(Z)(2)) = 0.127 +/- 0.011 is obtained.

引用

页码：161 / 165

页数：5

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