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arXiv 2209.04239hep-phnucl-exnucl-th
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高能核-核碰撞中重味介子和重子的产生

Heavy-flavor meson and baryon production in high-energy nucleus-nucleus collisions

Andrea Beraudo, Arturo De Pace, Daniel Pablos Alfonso, Francesco Prino, Marco Monteno, Marzia Nardi

摘要:

提出了一个描述相对论性重离子碰撞中重味强子化的新模型。我们探讨其效果的魅力强子产量和运动学分布,一旦后者被应用在年底的运输计算用于模拟传播的重夸克在碰撞中产生的退禁闭火球。该模型是基于色单重态集团的形成,通过重组的魅力夸克与轻反夸克或双夸克从同一流体细胞。这种局部的色中和机制导致了强烈的空间-动量关联,从而大大增强了粲重子的产生和所有粲强子的集体流动。

英文摘要:

We present a new model for the description of heavy-flavor hadronization in relativistic heavy-ion collisions. We explore its effect on the charmed hadron yields and kinematic distributions once the latter is applied at the end of transport calculations used to simulate the propagation of heavy quarks in the deconfined fireball produced in the collision. The model is based on the formation of color-singlet clusters through the recombination of charm quarks with light antiquarks or diquarks from the same fluid cell. This local mechanism of color neutralization leads to a strong space-momentum correlation, which provides a substantial enhancement of charmed baryon production and of the collective flow of all charmed hadrons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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