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arXiv 1809.08666nucl-thnucl-ex
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含损伤夸克和涨落弦的超相对论核碰撞中的前后多重数涨落

Forward-backward multiplicity fluctuations in ultra-relativistic nuclear collisions with wounded quarks and fluctuating strings

Martin Rohrmoser, Wojciech Broniowski

摘要:

我们分析了一个通用的模型,其中受伤的夸克与弦,其中两个端点的位置波动的空间快。假设弦发射的粒子彼此独立,并以均匀的速度分布,我们能够半解析地分析模型,这使得它的详细理解。作为一个约束条件的单体弦发射函数从实验数据中获得的碰撞在$\sqrt{s_{NN}}=200$ GeV,我们探讨了两体关联的各种方案的弦波动。我们发现,用于量化纵向波动的流行的措施是有限的上限和下限,并假设最有可能的模型的端点分布,这可能解释为什么各种方法在这里产生非常相似的结果接近的值。

英文摘要:

We analyze a generic model where wounded quarks are amended with strings in which both end-point positions fluctuate in spatial rapidity. With the assumption that the strings emit particles independently of one another and with a uniform distribution in rapidity, we are able to analyze the model semi-analytically, which allows for its detailed understanding. Using as a constraint the one-body string emission functions obtained from the experimental data for collisions at $\sqrt{s_{NN}}=200$ GeV, we explore the two-body correlations for various scenarios of string fluctuations. We find that the popular measures used to quantify the longitudinal fluctuations are limited with upper and lower bounds and assume close values for the most likely models of the end-point distributions, which may explain why various approaches yield here very similar results.

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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