Statistical model analysis of K/π and p/π fluctuations in heavy-ion collisions
Statistical model analysis of K/π and p/π fluctuations in heavy-ion collisions
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DOI：
10.1016/j.physletb.2009.07.046
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发表时间：
2009-08
影响因子：
4.4
通讯作者：
Jinghua Fu
中科院分区：
文献类型：
--
作者：
Jinghua Fu
在统计模型的框架中讨论了相对论性重离子碰撞中的 K/π 和 (p+p´)/π 动态涨落。通过考虑探测器的接受度，可以观察到较低 SPS 能量的波动增加。综合考虑运动学割断和效率，K/π波动作为碰撞能量函数的统计模型结果与误差范围内最中心的STAR数据一致，其中心性依赖性与数据中的相似。
The K/π and (p+p¯)/π dynamical fluctuations in relativistic heavy-ion collisions are discussed in the framework of the statistical model. By taking into account the detector acceptance, an increase of fluctuations at the lower SPS energies is observed. By considering both the kinematic cuts and efficiency, the statistical model results of the K/π fluctuations as a function of collision energy are consistent with the most central STAR data within errors, and their centrality dependence is similar to that in data.