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arXiv 2012.12514hep-ph
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大、小系统高能碰撞中的普适性

Universality in High Energy Collisions of small and large systems

P. Castorina, A. Iorio, D. Lanteri, H. Satz, M. Spousta

摘要:

奇异性增强和集体流被认为是夸克-胶子等离子体形成的标志。这些现象不仅在相对论性重离子碰撞中被发现,而且在高能、高多重数的质子-质子和质子-核(小系统)散射中也被发现。通过考虑横平面中的部分子密度作为动力学量来指定碰撞的初始条件,出现了一个普遍的行为,在可用能量的电子正电子湮没中,该初始条件太低而不能期望集体效应。

英文摘要:

Strangeness enhancement and collective flow are considered signatures of the quark gluon plasma formation. These phenomena have been detected not only in relativistic heavy ion collisions but also in high energy, high multiplicity events of proton-proton and proton-nucleus (small systems) scatterings. A universal behavior emerges by considering the parton density in the transverse plane as the dynamical quantity to specify the initial condition of the collisions, which in electron-positron annihilation at the available energies is too low to expect collective effects.

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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