Centrality dependence of the direct photon yield and elliptic flow in heavy-ion collisions at sqrt(s)=200 GeV
Centrality dependence of the direct photon yield and elliptic flow in heavy-ion collisions at sqrt(s)=200 GeV
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DOI：
10.1103/physrevc.89.034908
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发表时间：
2013-11
影响因子：
3.1
通讯作者：
O. Linnyk;W. Cassing;E. Bratkovskaya
中科院分区：
文献类型：
--
作者：
O. Linnyk;W. Cassing;E. Bratkovskaya
部分贡献的指数为p = 1.5，而部分贡献的指数为p = 1.75。此外，我们提供的直接光子椭圆流V2（PT）的中心依赖性的预测。直接光子v2被认为是更大的外围碰撞相比，最中心的，因为光子从热的退禁闭物质在碰撞的早期阶段进行了一个更小的椭圆流比最后的强子。
part with � � 1.5, whereas the partonic contribution scales with an exponent �p � 1.75. Additionally, we provide predictions for the centrality dependence of the direct photon elliptic flow v2(pT). The direct photon v2 is seen to be larger in peripheral collisions compared to the most central ones since the photons from the hot deconfined matter in the early stages of the collision carry a much smaller elliptic flow than the final hadrons.