论文标题
悬核核核横截面和核子大小
The hadronic nucleus-nucleus cross section and the nucleon size
论文作者
论文摘要
即使总的悬核核核横截面是最基本的可观察结果之一，但直到最近才精确地测量了LHC的铅铅碰撞。该测量意味着核子宽度应低于0.7 FM，这与所有已知的最新贝叶斯估计值矛盾。我们研究了较小的核子宽度对夸克 - 胶结等离子体特性（例如块状粘度）的含义。较小的核子宽度显着改善了几种三分化可观察物的描述。
Even though the total hadronic nucleus-nucleus cross section is among the most fundamental observables, it has only recently been measured precisely for lead-lead collisions at the LHC. This measurement implies the nucleon width should be below 0.7 fm, which is in contradiction with all known state-of-the-art Bayesian estimates. We study the implications of the smaller nucleon width on quark-gluon plasma properties such as the bulk viscosity. The smaller nucleon width dramatically improves the description of several triple-differential observables.
