标题： 喷注中的粒子关联 显示英文标题

标题： Particle Correlations in Jets

摘要： 我们通过将测量的能量-能量关联函数（EEC）与相对于喷注轴的两个单独能量流构建的EEC进行比较，研究高能喷注中的粒子关联。 这种比较表明，在小角度和中等/大角度存在真实的关联，表明它们来自于相关的分裂。 通过比较重离子碰撞和质子-质子碰撞中喷注EEC中的真实关联，这种方法将提供一种独特的工具来区分不同的物理机制。 它将有助于揭示热QCD介质中部分子分裂的介质修改。 另一方面，真实关联中的介质响应预计会被抵消。 显示英文摘要

摘要： We study particle correlations in high energy jets by comparing the measured energy-energy correlator (EEC) with that constructed from two individual energy flows with respect to the jet axis. This comparison demonstrates that genuine correlations exists for small angle and moderate/large angle, indicating that they are coming from correlated splitting. This method will provide a unique tool to disentangle different physics, by comparing the genuine correlations in jet EEC between heavy ion collisions and proton-proton collisions. It will help to expose the medium modification of parton splitting in hot QCD medium. On the other hand, the medium responses are expected to be canceled out in the genuine correlations.