论文标题
重离子碰撞中两个光子过程的瘦素的动量各向异性
Momentum Anisotropy of Leptons from Two Photon Processes in Heavy Ion Collisions
论文作者
论文摘要
我们研究了Lepton横向动量$ p_ \ perp $与影响参数$ b_ \ perp $之间的方位角角相关性，在非中央重型离子碰撞中，其中瘦素是通过两光子散射产生的。在傅立叶谐波系数中，在RHIC和LHC的典型运动学中发现了重要的$ V_4 $不对称性，并且对$ p_ \ perp $的依赖性温和，而$ v_2 $是由$ p_ \ perp $抑制的$ v_2 $。如果从实验中确认，则该独特的预测应提供有关DILEPTON在两光子过程中的生产机制的关键信息。
We investigate the azimuthal angular correlation between the lepton transverse momentum $P_\perp$ and the impact parameter $b_\perp$ in non-central heavy-ion collisions, where the leptons are produced through two-photon scattering. Among the Fourier harmonic coefficients, a significant $v_4$ asymmetry is found for the typical kinematics at RHIC and LHC with a mild dependence on the $P_\perp$, whereas $v_2$ is power suppressed by the lepton mass over $P_\perp$. This unique prediction, if confirmed from the experiments, shall provide crucial information on the production mechanism for the dilepton in two-photon processes.
