The jet-medium interaction in high energy heavy ion collisions is an important phenomenon to characterize the hot and dense medium produced in such collisions. The study of medium-induced modifications to the substructure of inclusive charged jets indicates a redistribution of energy inside the jet cone and provides insight into the energy loss mechanisms of jets in the medium. We investigate the in-medium modification to two jet shape observables i.e., the differential jet shape (ρ(r)) and the angularity (g) in the most central $Pb-Pb$ collisions at $\sqrt{s_{NN}}=2.76\text{TeV}$ using two commonly used event generators i.e., JEWEL (recoil OFF) and EPOS-3 in the ${\text{jet-p}}_T$ range of 20-40 GeV/c. JEWEL with recoil OFF has been used primarily as a reference system as that has been found to explain the global jet observables satisfactorily but lacks in jet-shape variables at higher jet-radii. EPOS-3 that explains the bulk properties in such collisions quite well takes into account a hydrodynamically evolving bulk matter, jets and hard-soft interactions. A comparison between the results from these models shows that while JEWEL (recoil OFF) does not explain the distribution of lost energy at higher radii with respect to the jet-axis, EPOS-3 explains the effect quite well. However, in EPOS-3, the partonic energy loss mechanism and secondary hard-soft interactions during hadronization and hadronic cascade phase are different from the conventional jet energy loss models. The current study can, therefore, provide important new insights on mechanisms regarding the modeling of the medium and hard-soft interactions in heavy ion collisions.

高能重离子碰撞中的射流-介质相互作用是表征此类碰撞中产生的高温高密度介质的重要现象。介质对包含电荷的射流的子结构的修改的研究表明，射流锥内部的能量重新分布，并提供了对介质中射流的能量损失机制的了解。我们研究了对两个射流形状可观测值的中等修正，即最中央的差分射流形状（ρ（r））和角度（g）$Pb-Pb$ 发生碰撞 $\sqrt{s_{ññ}}=2.76\text{电视}$ 使用两个常用的事件生成器，即JEWEL（recoil OFF）和EPOS-3 ${\text{喷射}}_{Ť}$范围为20-40 GeV / c。带有反冲关闭功能的JEWEL主要被用作参考系统，因为已发现该系统可以令人满意地解释整体喷射观测值，但在较高的喷射半径下缺乏喷射形状变量。EPOS-3很好地解释了此类碰撞的整体性质，并考虑了流体动力学演化的整体物质，射流和硬软相互作用。这些模型的结果之间的比较表明，尽管JEWEL（后退OFF）不能解释相对于射流轴的较高半径的能量损失分布，但EPOS-3可以很好地说明这种影响。但是，在EPOS-3中，强子化和强子级联阶段的部分能量损失机理和二次硬-软相互作用不同于常规的射流能量损失模型。因此，当前的研究可以