High-pT粒子的傅里叶谐波探测重离子碰撞中涨落的初始条件几何
Fourier Harmonics of High-pT Particles Probing the Fluctuating Intitial Condition Geometries in Heavy-Ion Collisions
摘要：
二次傅立叶谐波射流淬火已在文献中进行了深入的探讨，并被证明是敏感的基本射流路径长度依赖的能量损失和平均偏心率预测的Glauber和CGC/KLN模型的初始条件之间的差异。我们计算的喷气路径长度依赖的能量损失的更高的方位角谐波的喷气碎片的RHIC能量的能量损失的广义模型，但是，发现，即使是高$p_T$二阶矩是最敏感的鲜为人知的早期演变在第一FM/C。此外，我们表明，高喷流谐波是显着不敏感的初始条件，而不同的$v_n(N_{part})$与$v_n^{I_{AA}}(N_{part})$之间的单喷流和双喷流核修改因子的时刻的相关性仍然是一个最敏感的探针，以区分Glauber和CGC/KLN初始状态sQGP几何。
英文摘要：
Second Fourier harmonics of jet quenching have been thoroughly explored in the literature and shown to be sensitive to the underlying jet path-length dependence of energy loss and the differences between the mean eccentricity predicted by Glauber and CGC/KLN models of initial conditions. We compute the jet path-length dependence of energy-loss for higher azimuthal harmonics of jet-fragments in a generalized model of energy-loss for RHIC energies and find, however, that even the high-$p_T$ second moment is most sensitive to the poorly known early-time evolution during the first fm/c. Moreover, we demonstrate that higher-jet harmonics are remarkably insensitive to the initial conditions, while the different $v_n(N_{part})$ vs. $v_n^{I_{AA}}(N_{part})$ correlations between the moments of monojet and dijet nuclear modifications factors remain a most sensitive probe to differentiate between Glauber and CGC/KLN initial state sQGP geometries.
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