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arXiv 0805.3441hep-ph
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颜色聚类方法中的涨落和横向动量分布

Fluctuations and Transverse Momentum Distributions in the Color Clustering Approach

L. Cunqueiro, J. Dias de Deus, E. G. Ferreiro, C. Pajares

摘要:

在色源成团的框架下,给出了重子和介子的横向动量涨落、多重数涨落和横向动量分布的结果。我们确定在什么条件下的初始状态配置可以导致颜色连接,更具体地说,如果初始状态的变化可以导致从断开连接的颜色集群的过渡,修改有效源的数量。我们发现,超过一个临界点,有一个凝聚,包含相互作用,因此颜色连接的源。因此,该点指定了颜色解除限制的开始。我们表明,横向动量和多重性分布是相互关联的,在一个定义的方式。我们得到的非单调依赖的$p_T$和多重性波动的参与者的数量。我们提出了我们的结果的波动和横向动量分布在RHIC能量相比,现有的实验数据和我们的预测LHC能量。

英文摘要:

We present our results on transverse momentum fluctuations, multiplicity fluctuations and transverse momentum distributions for baryons and mesons in the framework of the clustering of color sources. We determine under what conditions the initial state configurations can lead to color connection, and more specifically, if variations of the initial state can lead to a transition from disconnected to connected color clusters, modifying the number of effective sources. We find that beyond a critical point, one has a condensate, containing interacting and hence color-connected sources. This point thus specifies the onset of color deconfinement. We show that the transverse momentum and multiplicity distributions are related to each other in a defined way. We obtain a non-monotonic dependence of the $p_T$ and multiplicity fluctuations with the number of participants. We present our results for the fluctuations and the transverse momentum distributions at RHIC energies compared to the existing experimental data and our predictions for LHC energies.

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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