Strangeness production in STAR
Strangeness production in STAR
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发表时间：
2008-09
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通讯作者：
J. Takahashi;R. D. Souza
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作者：
J. Takahashi;R. D. Souza
本文总结了星星实验测量的sqrt（SNN）= 200 GeV的Cu+Cu和Au+Au碰撞的奇异增强结果。中心Cu+Cu数据的相对产率似乎高于同等大小的外围Au+Au碰撞。此外，奇怪的粒子生产从这两个系统进行了比较的统计模型，应用一个大正则系综，也适用于奇怪的粒子的正则相关量。热拟合结果从大正则形式主义显示系统大小的依赖性很小，但是，当考虑一个奇怪的正则系综，奇异增强显示出强烈的依赖性的相关体积。
We present a summary of strangeness enhancement results comparing data from Cu+Cu and Au+Au collisions at sqrt(SNN) = 200GeV measured by the STAR experiment. Relative yields in central Cu+Cu data seem to be higher than the equivalent sized peripheral Au+Au collision. In addition, strange particle production from these two systems is compared in terms of a statistical model, applying a Grand-Canonical ensemble and also applying a canonical correlation volume for the strange particles. Thermal fit results from the Grand-Canonical formalism shows little dependence on the system size but, when considering a strange canonical ensemble, strangeness enhancement shows a strong dependency on the correlation volume.