标题： 奇异强子的横向动量谱在广义和非广义统计中的情况 显示英文标题

标题： Transverse momentum spectra of strange hadrons within extensive and nonextensive statistics

摘要： 使用通用的（非）广延统计方法，其中底层系统自主地表现出其广延和非广延统计特性，我们从CMS实验中提取各种拟合参数，并将这些结果与基于Tsallis和Boltzmann统计得到的相应结果进行比较。 本研究旨在说明三种统计方法之间的可能差异，并描述它们对碰撞能量、多重性和感兴趣体系大小的依赖性。 我们分析了在2.76 TeV的Pb+Pb碰撞中产生的奇异强子\Kslxi 的横向动量谱$p_T$，在5.02 TeV的p+Pb碰撞中以及在7 TeV的$p+p$碰撞中产生的奇异强子。 通过将所得的拟合参数；温度$T$、体积$V$和非广延参数$d$与基于Tsallis和Boltzmann统计的计算进行比较，除了对碰撞体系大小和类型的强烈依赖性外，还确定了三种统计方法之间的显著差异。 我们得出结论，具有大质量和大奇异数的产物粒子可能比质量较小和奇异数较少的粒子更早冻结。 这个结论似乎不依赖于粒子类型或碰撞类型，但显然表现出从化学（较高温度）到动能冻结（较低温度）的转变。 对于第一类（等效）c=1，随着能量和碰撞中心度的增加，第二个参数$d$的减少表明系统偏离了非广延性（非平衡态），并明显趋近于广延性（平衡态），这表明Boltzmann统计成为描述该系统的适当统计方法。 最后，我们给出了各种拟合参数的能量依赖性的解析表达式。 显示英文摘要

摘要： Using generic (non)extensive statistics, in which the underlying system autonomously manifests its extensive and nonextensive statistical nature, we extract various fit parameters from the CMS experiment and compare these to the corresponding results obtained from Tsallis and Boltzmann statistics. The present study is designed to indicate the possible variations between the three types of statistical approaches and characterizes their dependence on collision energy, multiplicity, and size of the system of interest. We analyze the transverse momentum spectra $p_T$ of the strange hadrons \Kslxi produced in Pb+Pb collisions, at 2.76 TeV, in p+Pb collisions, at 5.02 TeV, and in $p+p$ collisions, at 7 TeV. From the comparison of the resulting fit parameters; temperature $T$, volume $V$, and nonextensvie parameter $d$, with calculations based on Tsallis and Boltzmann statistics, remarkable differences between the three types of statistics are determined besides a strong dependence on size and type of the colliding system. We conclude that the produced particles with large masses and large strange quantum numbers likely freeze out earlier than the ones with smaller masses and less strange quantum numbers. This conclusion seems not depending on the type of the particle or the collision but apparently manifesting transitions from chemical (larger temperature) to the kinetic freezeouts (lower temperature). For the first university (equivalent) class c=1, the decrease in the second one, $d$, with increasing energy and collision centrality highlights that the system departs from nonextensivity (non-equilibrium) and apparently approaches extensivity (equilibrium) indicating that the Boltzmann statistics becomes the proper statistical approach in describing that system. Last but not least, we present analytical expressions for the energy dependence of the various fit parameters.