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Production of bottomonia states in proton+proton and heavy-ion collisions
Progress in Particle and Nuclear Physics ( IF 14.5 ) Pub Date : 2023-03-27 , DOI: 10.1016/j.ppnp.2023.104044
Vineet Kumar , Prashant Shukla , Abhijit Bhattacharyya

In this work, we review the experimental and theoretical developments of bottomonia production in proton+proton and heavy-ion collisions. The bottomonia production process is proving to be one of the most robust processes to investigate the fundamental aspects of Quantum Chromodynamics at both low and high temperatures. The LHC experiments in the last decade have produced large statistics of bottomonia states in wide kinematic ranges in various collision systems. The bottomonia have three Υ S-states which are reconstructed in dilepton invariant mass channel with high mass resolution by LHC detectors and P-states are measured via their decay to S-states. We start with the details of measurements in proton+proton collisions and their understanding in terms of various effective theoretical models. Here we cover both the Tevatron and LHC measurements with s spanning from 1.8 TeV to 13 TeV. The bottomonia states have particularly been very good probes to understand strongly interacting matter produced in heavy-ion collisions. The Pb+Pb collisions have been performed at sNN = 2.76 TeV and 5.02 TeV at LHC. This led to the detailed study of the modification of bottomonia yields as a function of various observables and collision energy. At the same time, the improved results of bottomonia production became available from RHIC experiments which have proven to be useful for a quantitative comparison. A systematic study of bottomonia production in p+p, p+Pb and Pb+Pb has been very useful to understand the medium effects in these collision systems. We review some of the (if not all the) models of bottomonia evolution due to various processes in a large dynamically evolving medium and discuss these in comparison with the measurements.



中文翻译:

质子+质子和重离子碰撞中 bottomonia 状态的产生

在这项工作中,我们回顾了质子 + 质子和重离子碰撞中 bottomonia 生产的实验和理论发展。bottonia 生产过程被证明是研究低温和高温下量子色动力学基本方面的最稳健的过程之一。过去十年的大型强子对撞机实验已经在各种碰撞系统的广泛运动学范围内产生了大量的 bottomonia 状态统计数据bottonia有三个LHC 探测器在双轻子不变质量通道中以高质量分辨率重建的 S 状态,P 状态通过它们衰减到 S 状态来测量。我们从质子+质子碰撞的测量细节以及它们对各种有效理论模型的理解开始。在这里,我们涵盖了 Tevatron 和 LHC 测量从 1.8 TeV 到 13 TeV。巴托尼亚态尤其是理解重离子碰撞中产生的强相互作用物质的非常好的探测器。Pb+Pb 碰撞在= LHC 的 2.76 TeV 和 5.02 TeV。这导致了对 bottomonia 产量的修改作为各种可观测值和碰撞能量的函数的详细研究。同时,已证明可用于定量比较的 RHIC 实验可获得巴托尼亚生产的改进结果。对 p+p、p+Pb 和 Pb+Pb 中 bottomonia 生产的系统研究对于理解这些碰撞系统中的介质效应非常有用。我们回顾了一些(如果不是全部的话)由于大型动态演化介质中的各种过程而导致的 bottonia 演化模型,并与测量结果进行比较讨论。

更新日期:2023-03-27
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