在统计强子化模型中检验粲夸克热化
Testing charm quark thermalisation within the Statistical Hadronisation Model
摘要：
大量的LHC实验数据表明，在低横动量条件下，粲偶素的产生是（再）生机制的主要表现。我们提出了一个重要的扩展的统计强子化模型来描述$\rm{J}/ψ$横向动量分布的基础上输入参数的流体动力学模拟。通过对这些数据的比较，可以检验夸克-胶子等离子体中粲夸克的热化程度。为此，我们将报告分析的$\rm{J}/ψ$横向动量谱在$\sqrt{s_{\rm NN}} = 2.76$和$5.02$ TeV的铅铅碰撞。
英文摘要：
A wealth of data on charmonium production in Pb-Pb collisions from the LHC experiments has provided strong evidence for (re-)generation as a dominant production mechanism at low transverse momentum. We present an important extension of the statistical hadronisation model to describe $\rm{J}/ψ$ transverse momentum distributions based on input parameters from hydrodynamical simulations. Comparison to the data allows the testing of the degree of thermalisation of charm quarks in the quark-gluon plasma. To this end we will report analyses of the $\rm{J}/ψ$ transverse momentum spectra in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ and $5.02$ TeV.
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