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arXiv 2008.03569hep-phhep-exnucl-exnucl-th
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电子-离子对撞机上集体现象的探讨

Exploring the Collective Phenomenon at the Electron-Ion Collider

Yu Shi, Lei Wang, Shu-Yi Wei, Bo-Wen Xiao, Liang Zheng

摘要:

基于强相互作用中罕见的涨落,我们认为光-核碰撞中的高多重数事件与$pA$碰撞中的高多重数事件在物理上有很强的相似性,并在其中发现了有趣的长程集体现象.这表明,集体性也可以在即将到来的电子-离子对撞机(EIC)的某些运动学区域,其中入射的虚光子具有足够长的寿命进行研究。利用彩色玻璃凝聚体模型,我们首先证明了初态相互作用可以解释最近在光-核碰撞中测得的ATLAS方位角关联结果,然后对EIC区$eA$碰撞中的长程关联进行了定量预测.凭借前所未有的精度和改变碰撞系统大小的能力,高光度EIC将为探索集体现象的物理机制打开一扇新的窗口。

英文摘要:

Based on rare fluctuations in strong interactions, we argue that there is a strong physical resemblance between the high multiplicity events in photo-nuclear collisions and those in $pA$ collisions, in which interesting long range collective phenomena are discovered. This indicates that the collectivity can also be studied in certain kinematic region of the upcoming Electron-Ion Collider (EIC) where the incoming virtual photon has a sufficiently long lifetime. Using a model in the Color Glass Condensate formalism, we first show that the initial state interactions can explain the recent ATLAS azimuthal correlation results measured in the photo-nuclear collisions, and then we provide quantitative predictions for the long range correlations in $eA$ collisions in the EIC regime. With the unprecedented precision and the ability to change the size of the collisional system, the high luminosity EIC will open a new window to explore the physical mechanism responsible for the collective phenomenon.

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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