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arXiv 0709.1633nucl-ex
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三粒子方位角相关

Three-Particle Azimuthal Correlations

Jason Glyndwr Ulery

摘要:

在RHIC中心Au+Au碰撞中的两粒子方位角关联揭示了一个加宽的远离侧结构,相对于环戊二烯基Au+Au,pp和d+Au。这可以用不同的物理机制来解释,如:大角度胶子辐射,偏转喷流,切伦科夫胶子辐射,和流体动力学冲击波产生的锥形流。通过三粒子关联,我们可以将锥形辐射、切伦科夫辐射和锥形流的情形与其他机制区别开来。此外,关联粒子pT的依赖性可以用来区分锥形流从简单的切伦科夫胶子辐射。我们将讨论已经在RHIC进行的三粒子相关分析,以及在LHC可以做些什么。

英文摘要:

Two-particle azimuthal correlations in central Au+Au collisional at RHIC have revealed a broadened away-side structure, with respect to perpherial Au+Au, pp, and d+Au. This could be explained by different physics mechanisms such as: large angle gluon radiation, deflected jets, Cerenkov gluon radiation, and conical flow generated by hydrodynamic shock-waves. We can discriminate the scenarios with conical emission, Cerenkov radiation and conical flow, from the other mechanisms though three-particle correlations. In addition, the associated particle pT dependence can be used to distinguish conical flow from simple Cerenkov gluon radiation. We will discuss three-particle correlation analyses that have been performed at RHIC and what can be done at the LHC.

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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