论文标题
QGP的最小滴：P-PB碰撞中的热力学特性
Smallest drop of QGP: Thermodynamic properties in p-Pb collisions
论文作者
论文摘要
在重核的超偏碰撞碰撞中产生的温度和密度的极端条件促进了宇宙中最基本的流体的形成，这是量子染色体动力学的脱合阶段，称为Quark-gluon等离子体。尽管在过去的十年中，在诸如Au-AU和PB-PB的碰撞系统中收集了广泛的实验证据，但在较小的系统（例如P-PB）的碰撞中，建立了夸克 - 胶原等离子体的形成，仍然是一个悬而未决的问题。在这项研究中，我们使用基于粘性相对论流体动力学的最先进的混合模型来描述5.02 TEV在PB碰撞中形成的物质的演变。我们研究了培养基和最终状态可观察物的热力学特性。我们的发现与实验数据和第一原理计算进行了比较，这些计算得出了晶格量子染色体动力学。结果支持在高多重性P-PB碰撞中形成强烈相互作用物质的集体阶段。
The extreme conditions of temperature and density produced in ultrarelativistic collisions of heavy nuclei facilitate the formation of the most fundamental fluid in the universe, the deconfined phase of Quantum Chromodynamics called quark-gluon plasma. Despite the extensive experimental evidence collected over the past decade of its production in colliding systems such as Au-Au and Pb-Pb, establishing quark-gluon plasma formation in the collision of smaller systems, such as p-Pb, remains an open question. In this study, we describe the evolution of matter formed in p-Pb collisions at 5.02 TeV using a state-of-the-art hybrid model based on viscous relativistic hydrodynamics. We investigate the thermodynamic properties of the medium and final state observables. Our findings are compared with experimental data and first-principles calculations derived from lattice quantum chromodynamics. The results support the formation of a collective phase of strongly interacting matter in high-multiplicity p-Pb collisions.
