A nonextensive thermodynamical equilibrium approach in e+e- → hadrons

被引：220

作者：

Bediaga, I ^{[1
]}

Curado, EMF ^{[1
]}

de Miranda, JM ^{[1
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

来源：

PHYSICA A | 2000年 / 286卷 / 1-2期

关键词：

high energy; hadroproduction; fireball; statistical models;

D O I：

10.1016/S0378-4371(00)00368-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the inclusion of long distance effect, expected in strong interactions, through a nonextensive thermodynamical approach is able to explain the experimental distribution of the transverse momentum of the hadrons with respect to the jet axis (pr) e(+)e(-) --> hadron reaction. The observed deviation from the exponential behavior, predicted by the Boltzmann-Gibbs thermodynamical treatment, is automatically recovered by the nonextensive Tsallis statistics used here. We fitted the observed p(t) spectrum in the range of 14-161 GeV and obtained, besides a good fit, the theoretically important fact that the temperature becomes independent of the primary energy. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：156 / 163

页数：8

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