Abstract

The theoretical description of the femtoscopy scales in ultrarelativistic heavy-ion collisions at different energies and for different colliding ion pairs (Au + Au collisions at the top RHIC energy \(\sqrt {{{s}_{{NN}}}} = 200\) GeV, Pb + Pb collisions at the LHC energies \(\sqrt {{{s}_{{NN}}}} = 2.76\) and \(\sqrt {{{s}_{{NN}}}} = 5.02\) TeV, the LHC Xe + Xe collisions at \(\sqrt {{{s}_{{NN}}}} = 5.44\) TeV) is provided within the integrated HydroKinetic model (iHKM). The comparison of the model simulation results, obtained for the considered collision types at the similar values of the mean charged particle multiplicity \(\left\langle {d{{N}_{{{\text{ch}}}}}{\text{/}}d\eta } \right\rangle \) shows that the magnitudes of the corresponding interferometry radii depend not only on \(\left\langle {d{{N}_{{{\text{ch}}}}}{\text{/}}d\eta } \right\rangle \), but also on the geometric sizes of the colliding nuclei.

中文翻译：

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集成水动力学模型中相对论重离子碰撞的细观结构

摘要

在不同的能量和不同的碰撞离子对（超RHIC能量的Au + Au碰撞\（\ sqrt {{{s} _ {{NN}}}} =下，在相对论性重离子碰撞中，飞镜刻度的理论描述LHC能量\（\ sqrt {{{s __ {{NN}}}} = 2.76 \）和\（\ sqrt {{{s} _ {{NN}}下的200 \） GeV，Pb + Pb碰撞}} = 5.02 \） TeV，则在集成HydroKinetic模型（iHKM）中提供了\（\ sqrt {{{s} _ {{{NN}}}} = 5.44 \） TeV）的LHC Xe + Xe碰撞。在平均带电粒子多重性\（\ left \ langle {d {{N} _ {{{\ text {ch}}}}}} { \ text {/}} d \ eta} \ right \ rangle \）显示相应的干涉半径不仅仅取决于\（\ left \ langle {d {{N} _ {{{\ text {ch}}}}} {\ text {/}} d \ eta} \ right \ rangle \），而且还包括碰撞核的几何尺寸。