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arXiv 1205.3585nucl-exhep-phnucl-th
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重离子碰撞中初始几何涨落的参与面关联研究：II部分

Study on initial geometry fluctuations via participant plane correlations in heavy ion collisions: part II

Jiangyong Jia, Derek Teaney

备注：
5 pages, 5 figures
发表信息：
Eur. Phys. J. C73, 2558 (2013)
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摘要：

进一步调查的参与者平面的相关性在一个Glauber模型框架内，专注于三个或四个不同顺序的参与者平面之间的相关性。对于$\cos(2Φ_{2}^*+3Φ_{3}^*-5Φ_{5}^*)$观察到强相关性，这是重叠区域的椭圆形状的反映。相应的实验反应平面角度之间的相关性可以很容易地测量。对于同样可测量的$\cos(2Φ_{2}^*+4Φ_{4}^*-6Φ_{6}^*)$、$\cos(2Φ_2^*-3Φ_3^*-4Φ_4^*+5Φ_5^*)$、$\cos(6Φ_2^*+3Φ_3^*-4Φ_4^*-5Φ_5^*)$、$\cos(Φ_1^*-2Φ_2^*-3Φ_3^*+4Φ_4^*)$、$\cos(Φ_1^*+6Φ_2^*-3Φ_3^*-4Φ_4^*)$和$\cos(Φ_1^*+2Φ_2^*+3Φ_3^*-6Φ_6^*)$，也观察到类似几何起源的强相关性。在RHIC和LHC上对重离子碰撞中相应的反应面谐波的实验测量可以提高我们对所测量的高阶流谐波的物理基础的理解。

英文摘要：

Further investigation of the participant plane correlations within a Glauber model framework is presented, focusing on correlations between three or four participant planes of different order. A strong correlation is observed for $\cos(2Φ_{2}^*+3Φ_{3}^*-5Φ_{5}^*)$ which is a reflection of the elliptic shape of the overlap region. The correlation between the corresponding experimental reaction plane angles can be easily measured. Strong correlations of similar geometric origin are also observed for $\cos(2Φ_{2}^*+4Φ_{4}^*-6Φ_{6}^*)$, $\cos(2Φ_2^*-3Φ_3^*-4Φ_4^*+5Φ_5^*)$, $\cos(6Φ_2^*+3Φ_3^*-4Φ_4^*-5Φ_5^*)$, $\cos(Φ_1^*-2Φ_2^*-3Φ_3^*+4Φ_4^*)$, $\cos(Φ_1^*+6Φ_2^*-3Φ_3^*-4Φ_4^*)$, and $\cos(Φ_1^*+2Φ_2^*+3Φ_3^*-6Φ_6^*)$, which are also measurable. Experimental measurements of the corresponding reaction plane correlators in heavy ion collisions at RHIC and the LHC may improve our understanding of the physics underlying the measured higher order flow harmonics.

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