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arXiv 1808.04896hep-phnucl-th
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彩色玻璃凝聚体中快度多粒子的产生

Multiparticle Production at Mid-Rapidity in the Color-Glass Condensate

Mauricio Martinez, Matthew D. Sievert, Douglas E. Wertepny

摘要:

本文用有效场论计算了色玻璃凝聚体(CGC)半稀密区中快度多粒子产生的若干截面。特别是,我们提出了新的结果,生产的两个夸克-反夸克对(无论是相同的或不同的口味)和生产的一个夸克-反夸克对和胶子。我们还证明了存在一个简单的映射,它将产生夸克-反夸克对的截面转换为相应的产生胶子的截面,我们使用它来获得各种结果,并与文献进行交叉检查。我们还讨论了强子化的影响,在重味部门,书面明确的表达式为生产的各种组合的$D$和$\bar D$介子,$J/ψ$介子,轻强子。这里提出的各种多粒子截面包含了丰富的信息,可用于研究重口味的生产,电荷依赖的相关性,和“集体”流动现象所产生的初始状态动力学。

英文摘要:

In this paper, we compute a number of cross sections for the production of multiple particles at mid-rapidity in the semi-dilute / dense regime of the color-glass condensate (CGC) effective field theory. In particular, we present new results for the production of two quark-antiquark pairs (whether the same or different flavors) and for the production of one quark-antiquark pair and a gluon. We also demonstrate the existence of a simple mapping which transforms the cross section to produce a quark-antiquark pair into the corresponding cross section to produce a gluon, which we use to obtain various results and to cross-check them against the literature. We also discuss hadronization effects in the heavy flavor sector, writing explicit expressions for the production of various combinations of $D$ and $\bar D$ mesons, $J/ψ$ mesons, and light hadrons. The various multiparticle cross sections presented here contain a wealth of information and can be used to study heavy flavor production, charge-dependent correlations, and "collective" flow phenomena arising from initial-state dynamics.

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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