论文标题
重离子碰撞中夸克产量的耦合传输方程
Coupled Transport Equations for Quarkonium Production in Heavy Ion Collisions
论文作者
论文摘要
由开放量子系统形式主义的最新应用以了解夸克 - 杜伦等离子体中的夸克运输，我们开发了一组耦合的玻尔兹曼方程，用于开放的重型夸克 - 易夸克对和Quarkonia。我们的方法跟踪夸克解离的重夸克 - 易夸克对之间的相关性，因此能够考虑不相关和相关的重组。通过求解用于当前重离子碰撞实验的耦合玻尔兹曼方程，我们发现相关重组对于描述底部核修饰因子的数据至关重要。为了进一步测试实验中相关重组的重要性，我们提出了一个新的可观察的：$ \ frac {r_ {aa} [χ_b（1p）]} {r_ {aa} [AA} [υ（2S）]} $。该比率的未来测量将有助于区分有或没有相关重组的计算。
Motivated by recent applications of the open quantum system formalism to understand quarkonium transport in the quark-gluon plasma, we develop a set of coupled Boltzmann equations for open heavy quark-antiquark pairs and quarkonia. Our approach keeps track of the correlation between the heavy quark-antiquark pair from quarkonium dissociation and thus is able to account for both uncorrelated and correlated recombination. By solving the coupled Boltzmann equations for current heavy ion collision experiments, we find correlated recombination is crucial to describe the data of bottomonia nuclear modification factors. To further test the importance of correlated recombination in experiments, we propose a new observable: $\frac{R_{AA}[χ_b(1P)]}{R_{AA}[Υ(2S)]}$. Future measurements of this ratio will help distinguish calculations with and without correlated recombination.
