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Progress on 3+1D Glasma simulations
The European Physical Journal A ( IF 2.7 ) Pub Date : 2020-09-30 , DOI: 10.1140/epja/s10050-020-00241-6
Andreas Ipp 1 , David I Müller 1
Affiliation  

We review our progress on 3+1D Glasma simulations to describe the earliest stages of heavy-ion collisions. In our simulations we include nuclei with finite longitudinal extent and describe the collision process as well as the evolution of the strongly interacting gluonic fields in the laboratory frame in 3+1 dimensions using the colored particle-in-cell method. This allows us to compute the 3+1 dimensional Glasma energy-momentum tensor, whose rapidity dependence can be compared to experimental pion multiplicity data from RHIC. An improved scheme cures the numerical Cherenkov instability and paves the way for simulations at higher energies used at LHC.



中文翻译:

3+1D Glasma 模拟的进展

我们回顾了 3+1D Glasma 模拟的进展,以描述重离子碰撞的最早阶段。在我们的模拟中,我们包括具有有限纵向范围的原子核,并使用彩色细胞内粒子方法在 3+1 维度的实验室框架中描述碰撞过程以及强相互作用胶子场的演化。这使我们能够计算 3+1 维 Glasma 能量动量张量,其速度依赖性可以与 RHIC 的实验 pion 多重性数据进行比较。改进的方案解决了数值切伦科夫不稳定性问题,并为大型强子对撞机使用更高能量的模拟铺平了道路。

更新日期:2020-10-02
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