Azimuthal anisotropy of pi0 and eta mesons in Au+Au collisions at sqrt(s_NN) = 200 GeV
Azimuthal anisotropy of pi0 and eta mesons in Au+Au collisions at sqrt(s_NN) = 200 GeV
复制标题
sqrt(s_NN) = 200 GeV 时 Au Au 碰撞中 pi0 和 eta 介子的方位各向异性
DOI:
10.1103/physrevc.88.064910
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
et al.)
中科院分区:
文献类型:
--
作者:
PHENIX Collaboration (A. Adare;T. Gunji;K. Shigaki;T. Sugitate;et al.)
The azimuthal anisotropy coefficientsandofandmesons are measured in Au + Au collisions atGeV as a function of transverse momentum(1–14 GeV/) and centrality. The extractedcoefficients are found to be consistent between the two meson species over the measuredrange. The ratio offormesons is found to be independent offor 1–9 GeV/, implying a lack of sensitivity of the ratio to the change of underlying physics with. Furthermore, the ratio ofis systematically larger in central collisions, which may reflect the combined effects of fluctuations in the initial collision geometry and finite viscosity in the evolving medium.