论文标题
在5.02 TEV的PB-PB碰撞中，非相同的粒子触发与爱丽丝的碰撞
Non-identical particle femtoscopy in Pb--Pb collisions at 5.02 TeV with ALICE
论文作者
论文摘要
非相同的粒子触觉镜检查是一种开发的技术，用于估计粒子发射培养基的维度以及使用两粒子相关函数之间的颗粒之间的平均成对发射不对称。 PB $ -PB碰撞中PB $ -SQRT {s _ {\ Mathrm {nn}}} = $ 5.02 TEV与Alice在LHC中的pb $ - $ PB碰撞中的所有可能充电的组合的触发相关性分析。使用相关函数的球形谐波表示PB $ -PB碰撞的不同中心性类别提取结果，$ C^{\ rm 0} _ {\ rm 0} $和$ re c^{\ rm 1} _ {\ rm 1} _ {\ rm 1} $。广泛地讨论了具有多重性和集体性的feat镜参数的演变。观察到随着多样性的增加，观察到femtoscotic参数增加。成对发射不对称的非零值以及源大小的减小，随着成对横向动量的增加表明系统中的集体性存在。
The non-identical particle femtoscopy is a technique that is developed to estimate the dimension of a particle-emitting medium as well as the average pair-emission asymmetry between the particles using two-particle correlation functions. The analysis of femtoscopic correlations for all possible charged combinations of pion-kaon pairs in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV with ALICE at the LHC is presented in this article. The results are extracted for different centrality classes of Pb$-$Pb collisions using the spherical harmonics representations of the correlation functions, $C^{\rm 0}_{\rm 0}$ and $Re C^{\rm 1}_{\rm 1}$. The evolution of the femtoscopic parameters with multiplicity and collectivity of the system is discussed extensively. The femtoscopic parameters are observed to increase with the multiplicity. The non-zero values of pair-emission asymmetry and the decrease of source-size with increasing pair-transverse momentum indicate the presence of collectivity in the system.
