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
收藏
页码：5435 / 5438
页数：4
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