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arXiv 0712.0509hep-ph
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弦逾渗框架下重子和介子横动量分布的普适行为

Universal behavior of baryons and mesons transverse momentum distributions in the framework of percolation of strings

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

摘要:

在弦渗流的框架下,AA和HH碰撞中的横向动量分布在所有中心和能量下都遵循一个普遍的行为。这些分布的宽度与由所产生的串的重叠形成的簇的大小的分布的宽度有关。重子和介子的分布之间的差异起源于几个字符串的集群,增强了粒子与更多的成分的分裂。计算结果与SPS和RHIC数据一致。与RHIC相比,LHC对重子的预测显示出差异。在LHC的能量,我们也得到了高的PT抑制PP高多重性事件相比,PP最小偏差。

英文摘要:

In the framework of percolation of strings, the transverse momentum distributions in AA and hh collisions at all centralities and energies follow a universal behavior. The width of these distributions is related to the width of the distribution of the size of the clusters formed from the overlapping of the produced strings. The difference between the distributions for baryons and mesons originates in the fragmentation of clusters of several strings which enhance the particles with higher number of constituents. The results agree with SPS and RHIC data. The predictions for LHC show differences for baryons compared with RHIC. At LHC energies we obtain also a high pt suppression for pp high multiplicity events compared with pp minimum bias.

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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