NICA能量下相对论重离子碰撞椭圆流测量的中心性选择效应

D. Idrisov, P. Parfenov, A. Taranenko
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引用次数: 0

摘要

产生粒子的椭圆流(v2)是对相对论性重离子碰撞中产生的强相互作用物质的输运性质敏感的重要观测值之一。在未来的核子离子对撞机设施(NICA)的多用途探测器(MPD)实验中,也可以在碰撞能量sNN = 4-11 GeV的情况下对v2进行详细的差分测量。椭圆流在很大程度上取决于碰撞几何形状,由碰撞参数b定义。通常b是理论计算的输入,可以使用中心性过程从最终状态的实验观测值中推断出来。在这项工作中,我们研究了中心性程序的选择对NICA能量下椭圆流测量的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Centrality Selection Effect on Elliptic Flow Measurements in Relativistic Heavy-Ion Collisions at NICA Energies
The elliptic flow (v2) of produced particles is one of the important observables sensitive to the transport properties of the strongly interacting matter created in relativistic heavy-ion collisions. Detailed differential measurements of v2 are also foreseen in the future Multi-Purpose Detector (MPD) experiment at the Nuclotron based Ion Collider fAcility (NICA) at collision energies sNN = 4–11 GeV. Elliptic flow strongly depends on collision geometry, defined by the impact parameter b. Usually b is an input to theoretical calculations and can be deduced from experimental observables in the final state using the centrality procedure. In this work, we investigate the influence of the choice of centrality procedure on the elliptic flow measurements at NICA energies.
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