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arXiv 0910.3590nucl-th
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相对论核碰撞中软脊对硬脊的贡献

Soft Contribution to the Hard Ridge in Relativistic Nuclear Collisions

George Moschelli, Sean Gavin

摘要:

核碰撞表现出质子-质子碰撞中不存在的长程快度关联。由于这种关联结构的相对赝快度较宽,相对方位角较窄,因此被称为脊。类似的脊结构中观察到的粒子与射流触发(硬脊)以及相关性没有触发(软脊)的相关性。前面我们曾论证过,软脊的出现是由于在一个早期的对流阶段形成的颗粒后来表现出横向流动。我们扩展这项研究,以解决新的软脊测量。然后,我们确定流动的硬脊的贡献。

英文摘要:

Nuclear collisions exhibit long-range rapidity correlations not present in proton-proton collisions. Because the correlation structure is wide in relative pseudorapidity and narrow in relative azimuthal angle, it is known as the ridge. Similar ridge structures are observed in correlations of particles associated with a jet trigger (the hard ridge) as well as correlations without a trigger (the soft ridge). Earlier we argued that the soft ridge arises when particles formed in an early Glasma stage later manifest transverse flow. We extend this study to address new soft ridge measurements. We then determine the contribution of flow to the hard ridge.

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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