IP-Glasma Phenomenology Beyond 2D

Kinetic evolution of the glasma and thermalization in heavy ion collisions

In relativistic heavy ion collisions, a highly occupied gluonic matter is created shortly after initial impact, which is in a non-thermal state and often referred to as the Glasma. Successful phenomenology suggests that the glasma evolves rather quickly toward the thermal quark-gluon plasma and a hydrodynamic behavior emerges at very early time $\sim \hat{o}(1)$ fm/c. Exactly how such "apparent thermalization" occurs and connects the initial conditions to the hydrodynamic onset, remains a significant challenge for theory as well as phenomenology. We briefly review various ideas and recent prog…

在IP-Glasma初始阶段和夸克-胶子等离子体中模拟粲夸克：一种用于粲夸克唯象学的混合方法

Simulating Charm Quarks in IP-Glasma Initial Stage and Quark-Gluon Plasma: A Hybrid Approach for charm quark phenomenology

本文采用MARTINI事件生成器研究粲夸克在相对论重离子碰撞预平衡和流体力学阶段的输运与能量损失，分析了5.02 TeV下Pb+Pb碰撞中重介子核修正因子和流动系数对早期及体介质演化的敏感性，为粲夸克在早期和夸克-胶子等离子体中的相互作用强度提供了见解。

Glasma的3+1维初始化与演化

The 3+1D initialization and evolution of the Glasma

针对IP-Glasma受推进不变性限制、难以描述纵向动力学的问题，本文提出将其扩展到3+1维并保留关键特性的方法，以研究长程快度关联等三维物理。

Correlations and the ridge in the Color Glass Condensate beyond the glasma graph approximation

We consider two-gluon production in dilute-dense collisions within the Color Glass Condensate framework, applicable to both proton-nucleus and heavy-light ion collisions. We go beyond the glasma graph approximation which is valid in the dilute-dilute limit and show the correspondence between the glasma graphs and the $k_T$-factorized approach that we use in our calculation. We then identify the classical uncorrelated, and the Hanbury-Brown-Twiss (HBT) and Bose enhancement correlated contributions, with the Bose enhancement contribution being suppressed by the number of degrees of freedom with …

Studying the 3+1D structure of the Glasma using the weak field approximation

We extend the weak field approximation for the Glasma beyond the boost-invariant approximation, which allows us to compute rapidity-dependent observables in the early stages of heavy-ion collisions. We show that in the limit of small fields, the weak field approximation agrees quantitatively with non-perturbative lattice simulations. Furthermore, we demonstrate that the rapidity profile of the transverse pressure is determined by longitudinal color correlations within the colliding nuclei.

相对论重离子碰撞多阶段方法下的开粲唯象学研究

Open charm phenomenology with a multi-stage approach to relativistic heavy-ion collisions

本研究在MARTINI框架下结合IP-Glasma初始条件与MUSIC流体模型，利用朗之万动力学模拟重夸克演化，发现开粲椭圆流依赖初始涨落，验证了D介子可作为研究重离子碰撞初始阶段与QGP性质的有效探针。