论文标题
在LHC能量的不同碰撞系统上的动力学冻结参数的通用缩放
The universal scaling of kinetic freeze-out parameters across different collision systems at the LHC energy
论文作者
论文摘要
在本文中，我们对在大型强子对撞机（LHC）（包括PP，PPB，Xexe和PBPB碰撞）的各种碰撞系统中产生的鉴定的Hadron的横向动量光谱进行了Tsallis Blast-Wave分析。在这些系统中研究了动力学冻结特性，这些系统随事件多重性而变化。我们发现，提取的动力学冻结温度，径向流速度和非扩展参数表现出具有非常不同几何大小的这些系统的通用缩放行为，尤其是当考虑到独立的Baryon Tsallis非扩展参数时。该普遍性可能表明在LHC能量的不同碰撞系统中存在统一的党派演化阶段。
In this paper, we perform the Tsallis Blast-Wave analysis on the transverse momentum spectra of identified hadrons produced in a wide range of collision systems at the Large Hadron Collider (LHC) including pp, pPb, XeXe and PbPb collisions. The kinetic freeze-out properties are investigated across these systems varying with the event multiplicity. We find that the extracted kinetic freeze-out temperature, radial flow velocity and the non-extensive parameter exhibit a universal scaling behavior for these systems with very different geometric size, especially when the independent baryon Tsallis non-extensive parameter is considered. This universality may indicate the existence of a unified partonic evolution stage in different collision systems at the LHC energies.
