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arXiv 1901.01635hep-phnucl-ex
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粒子产额涨落测量的最新进展

Recent developments in particle yield fluctuation measurements

Igor Altsybeev

摘要:

在相对论性重离子碰撞中,初始状态的性质和介质演化过程中产生的效应,如强子相和部分子相之间的转变,应该反映在所产生粒子数量的逐个事件波动中。在本文中,最近测量的几个事件的事件,即相对粒子产额和不同类型的前向-后向关联的动力学起伏的可观测量进行了讨论。此外,提出了新的观测量的前向后相关研究:在两个单独的接受间隔和在一个间隔和平均横向动量在另一个间隔的比率之间的相关性确定的粒子产量的比率。

英文摘要:

In relativistic heavy-ion collisions, properties of the initial state and effects arising during evolution of the medium, such as a transition between the hadronic and partonic phases, should reflect themselves in event-by-event fluctuations of the number of produced particles. In this paper, recent measurements of several event-by-event observables, namely, dynamical fluctuations of relative particle yields and forward-backward correlations of different types, are discussed. Also, new observables for forward-backward correlation studies are proposed: correlations between ratios of identified particle yields in two separated acceptance intervals and the correlation between the ratio in one interval and average transverse momentum in another.

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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