论文标题
P+PB碰撞中初始状态几何形状和动量相关性的速度依赖性
Rapidity dependence of initial state geometry and momentum correlations in p+Pb collisions
论文作者
论文摘要
事件几何形状和初始状态相关性已被作为可能的远距离方位角相关性的解释，在高多样性p+p和p+pb碰撞中观察到。我们研究了$ \ sqrt {s} = 5.02〜 \ rm {tev} $ p+pb碰撞中最初状态动量相关性和事件的初始状态动量相关性和事件的几何形状的速度依赖性Gluon分布。我们发现事件几何形状在较大的速度间隔内相关，而初始状态动量相关性的速度相对较短。根据我们的结果，我们讨论了两种影响在解释小型系统中集体现象的起源中的相关性的影响。
Event geometry and initial state correlations have been invoked as possible explanations of long range azimuthal correlations observed in high multiplicity p+p and p+Pb collisions. We study the rapidity dependence of initial state momentum correlations and event-by-event geometry in $\sqrt{s}=5.02~\rm{TeV}$ p+Pb collisions within the 3+1D IP-Glasma model~\cite{Schenke:2016ksl}, where the longitudinal structure is governed by JIMWLK rapidity evolution of the incoming nuclear gluon distributions. We find that the event geometry is correlated across large rapidity intervals whereas initial state momentum correlations are relatively short range in rapidity. Based on our results, we discuss implications for the relevance of both effects in explaining the origin of collective phenomena in small systems.
