论文标题

tsallis-thermmeter:大型和小型碰撞系统的QGP指标

Tsallis-thermometer: a QGP indicator for large and small collisional systems

论文作者

Bíró, Gábor, Barnaföldi, Gergely Gábor, Biró, Tamás Sándor

论文摘要

在热力学一致的非扩展统计表述中,分析了近年来已鉴定出的Hadron的横向动量分布。研究各种强子物种研究了广泛的质量中心能量和平均事件多重性。我们证明,平均事件多样性是研究高能碰撞研究的关键变量,并且可以从小型到大型系统中的描述中平稳过渡。为此,非扩展的统计方法非常适合。非扩展描述的有效性将以多种方式探讨:例如,单位速度的综合收益率的计算,径向流量的分析以及热力学变量的一致性检查。引入“ Tsallis-thermometer”作为小型碰撞系统中夸克 - 网状血浆的指标。

The transverse momentum distribution of identified hadrons from recent years are analyzed within the thermodynamically consistent formulation of non-extensive statistics. A wide range of center-of-mass energies and average event multiplicities are studied for various hadron species. We demonstrate that the average event multiplicity is a key variable in the study of high-energy collisions and a smooth transition in the description from small to large systems is possible. For this purpose the non-extensive statistical approach is more than appropriate. The validity of the non-extensive description is explored in multiple ways: such as the calculation of integrated yields per unit rapidity, the analysis of radial flow and the consistency check of the thermodynamical variables. The 'Tsallis-thermometer' is introduced as an indicator of quark-gluon plasma in small collisional systems.

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