Study of the structure of hadronic events at LEP with L3

被引：0

作者：

Banerjee, S ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 86卷

关键词：

D O I：

10.1016/S0920-5632(00)00541-7

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：

Global event shape variables and charged particle spectra are studied from hadronic collected by the L3 detector corresponding to hadronic center of mass energies between 30 and 189 GeV. Strong coupling constant (alpha(s)) and active number of flavours (N-f) are determined from the event shapes to be: alpha(s)(Mz) = 0.1220 +/- 0.0015(exp) +/- 0.0060(theo). and N-f = 4.4 +/- 1.0(exp) +/- 2.0(theo) respectively. The energy evolution of the moments of the event shapes have been fitted to a combination of O(alpha(s)(2)) calculations and power law parametrization of the non-perturbative part, and the universality of the power law behaviour is observed.

引用

页码：51 / 54

页数：4

共 24 条

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