论文标题
LHC能量的多颗粒产生的不同程度的复杂性，从软过程过渡到硬过程
Different degrees of complexity in multiparticle production at the LHC energies with the transition from soft to hard processes
论文作者
论文摘要
我们采用了一种基于网络的可见性图方法，以探索LHC能量状态下多粒子生产过程中的复杂性和分形性的程度。为了进行调查，我们在$ \ sqrt {s} $ = 7和13 tev和proton-nucleus（p-a）碰撞事件上使用了质子 - 普罗顿（PP）碰撞事件，该事件在$ \ sqrt {s _ {\ rm nn}}} $ = 5.02 tev中，使用hybrid morte-car arde-epos，Espos cors of ass epos，sqrt {s _ {\ s _ {\ rm nn}} $ = 5.02 tev。随着产生的粒子的横向动量的增加，高能碰撞中的颗粒产生变得更加困难。我们首次提出了对分形行为的变化的详细分析，因为该过程逐渐变得比上述碰撞系统的软软。该研究表明，复杂程度取决于粒子生产过程的硬度。当前的分析也表现出系统大小的依赖性以及分形性质的能量依赖性。
We apply a complex network-based method of visibility graph to explore the degree of complexity and fractal nature in the multiparticle production process at the LHC energy regime. For the investigation, we have used proton-proton (pp) collision events at $\sqrt{s}$ = 7 and 13 TeV and proton-nucleus (p-A) collision events at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, generated using a hybrid Monte-Carlo model, EPOS3 with hydrodynamical evolution. Particle production in high energy collisions becomes gradually harder with the increase of the produced particle's transverse momentum. We have presented for the first time a detailed analysis of the change of fractal behaviour as the process becomes gradually harder than the soft ones for the above mentioned colliding systems. The study reveals that the degree of complexity depends on the hardness of the particle production process. System size dependency, as well as energy dependency of fractal nature, are also exhibited by the present analysis.
