High energy collisions are the laboratories within our reach to study strongly interacting matter under extreme temperatures. In the present study, we use a quarkonia suppression scheme to explain the bottomonium production at the two energies available at the CERN Large Hadron Collider. We employ echo-qgp to model the $(3+1)$-dimensional relativistic viscous hydrodynamic evolution of the medium. Bottomonia produced in the early stage dissociates due to color screening, gluonic dissociation, and collisional damping in addition to shadowing as an initial state effect. In the color screening mechanism, the temperature from hydrodynamics is used to find the screening radii at each centrality and rapidity. The shadowing effect utilizes the parton distribution functions obtained from the CT14 global analysis and shadowing factors from EPPS16. A lattice QCD based equation of state from the Wuppertal-Budapest Collaboration has been used. The experimental values of pion $\left({\pi }^{+}\right)$ spectra were used to constrain the initial conditions of the dynamics. The bottomonium suppression is determined as a function of centrality, transverse momentum, and rapidity for $\mathrm{{\rm Y}}\left(1S\right)$ and $\mathrm{{\rm Y}}\left(2S\right)$ states at the LHC energies of 2.76 and $5.02\mathrm{TeV}$. We find a fairly good agreement between our theoretically calculated survival probability and the measured nuclear modification factor $\left(R_{AA}\right)$ at the two energies.

中文翻译：

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在欧洲核子研究中心大型强子对撞机可用的能量下 PbPb 碰撞中的底元素抑制

高能碰撞是我们研究极端温度下强相互作用物质的实验室。在本研究中，我们使用夸克尼亚抑制方案来解释在欧洲核子研究中心大型强子对撞机可用的两种能量下产生的底元素。我们使用echo-qgp来建模$(3+1)$介质的维相对论粘性流体动力学演化。除了作为初始状态效应的阴影之外，在早期阶段产生的Bottomonia由于颜色屏蔽、胶子解离和碰撞阻尼而解离。在颜色筛选机制中，来自流体动力学的温度用于找到每个中心和速度的筛选半径。阴影效应利用从CT14全局分析和EPPS16 的阴影因子中获得的部分分布函数。已经使用了来自伍珀塔尔-布达佩斯合作组织的基于晶格 QCD 的状态方程。pion的实验值$\left({\pi }^{+}\right)$光谱用于约束动力学的初始条件。底物抑制被确定为中心性、横向动量和速度的函数$\mathrm{{\rm Y}}\left(1秒\right)$ 和 $\mathrm{{\rm Y}}\left(2秒\right)$ LHC 能量为 2.76 和 $5.02\mathrm{伏特}$. 我们发现理论计算的生存概率与测量的核修饰因子之间存在相当好的一致性$\left({\mathrm{电阻}}_{\mathrm{一种}\mathrm{一种}}\right)$ 在这两种能量上。