论文标题
超长沉重离子碰撞中的集体性
Collectivity in ultra-peripheral heavy-ion collisions
论文作者
论文摘要
我们提供了完整的（3+1）D动力学模拟，以研究与3DGLAUBER+MUSIC+URQMD框架的大型强子对撞机（LHC）的超核核碰撞（UPC）中的集体行为。通过从不对称的P+PB碰撞中推断，我们模拟了LHC的超外外碰撞中Pb核与Pb核相互作用的准真实光子$γ^*$，假设最终状态效应很强。我们研究了P+Pb和$γ^*$+Pb碰撞之间的椭圆流层次结构，这是由纵向流解音的差异主导的。我们的理论框架提供了一种定量工具，可以在当前和将来的对撞机实验中研究小型不对称碰撞系统中的集体性。
We present full (3+1)D dynamical simulations to study collective behavior in ultra-peripheral nucleus-nucleus collisions (UPC) at the Large Hadron Collider (LHC) with the 3DGlauber+MUSIC+UrQMD framework. By extrapolating from asymmetric p+Pb collisions, we simulate a quasi-real photon $γ^*$ interacting with the Pb nucleus in an ultra-peripheral collision at the LHC, assuming strong final-state effects. We study the elliptic flow hierarchy between p+Pb and $γ^*$+Pb collisions, which is dominated by the difference in longitudinal flow decorrelations. Our theoretical framework provides a quantitative tool to study collectivity in small asymmetric collision systems at current and future collider experiments.
