Fluctuations of particle ratios and the abundance of hadronic resonances

被引：158

作者：

Jeon, S ^{[1
]}

Koch, V ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.83.5435

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We argue that the event-by-event fluctuations of the ratio-of positively charged over negatively charged pions provides a measurement of the number of rho and omega mesons right after hadronization. This finding can be utilized to put the hypothesis,of chemical equilibration in relativistic heavy ion collisions to a test. The fluctuation may also serve as an indicator for new physics to be discovered in relativistic heavy-ion collisions.

引用

页码：5435 / 5438

页数：4

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