标题： 相对论重离子碰撞中轻核的味相关化学冻结出 显示英文标题

标题： Flavour-Dependent Chemical Freeze-Out of Light Nuclei in Relativistic Heavy-Ion Collisions

摘要： 我们研究了在 Au+Au 能量为 $\sqrt{s_\mathrm{NN}}$ = 7.7 - 200 GeV 和 Pb+Pb 能量为 $\sqrt{s_\mathrm{NN}}$ = 2.76 和 5.02 TeV 的碰撞中，在一个与味相关的冻结框架下轻核的产生情况，假设不同的味强子经历独立的化学冻结。 使用热力-FIST 包，从拟合各种强子产额集合（包括和不包括轻核）得到的热参数被用来计算轻核产额比，即 $d/p$, $\bar{d}/\bar{p}$, $t/p$和 $t/d$。 与 STAR 和 ALICE 合作的数据对比表明，顺序冻结场景比传统的单一冻结方法能更好地描述轻核产额比。 这些结果表明，最终态轻核产生的与味相关的化学冻结在 RHIC 和 LHC 能量下的重离子碰撞中仍然存在。 显示英文摘要

摘要： We study the production of light nuclei in Au+Au collisions at $\sqrt{s_\mathrm{NN}}$ = 7.7 - 200 GeV and Pb+Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 2.76 and 5.02 TeV within a flavour-dependent freeze-out framework, assuming different flavoured hadrons undergo separate chemical freeze-out. Using the Thermal-FIST package, thermal parameters extracted from fits to various sets of hadron yields, including and excluding light nuclei, are used to calculate the ratios of the yields of light nuclei, namely, $d/p$, $\bar{d}/\bar{p}$, $t/p$, and $t/d$. A comparison with data from the STAR and ALICE collaborations shows that a sequential freeze-out scenario provides a better description of light nuclei yield ratios than the traditional single freeze-out approach. These results suggest the flavour-dependent chemical freeze-out for final state light-nuclei production persists in heavy-ion collisions at both RHIC and LHC energies.