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arXiv 1609.07334nucl-ex
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用ALICE测量Pb-Pb在$\sqrt{\text{s}_\text{NN}} = \text{5.02}\,\text{TeV}$的带电粒子核修饰

The nuclear modification of charged particles in Pb-Pb at $\sqrt{\text{s}_\text{NN}} = \text{5.02}\,\text{TeV}$ measured with ALICE

Julius Gronefeld

摘要:

对重离子碰撞中带电粒子产生的研究有助于我们了解介质的密度和能量损失机制。观察到的高$\textit{p}_\text{T}$产额的抑制通常归因于部分子在通过夸克和胶子的退禁闭态--夸克-胶子等离子体(QGP)--传播时的能量损失,这是由QCD预测的。这样的测量允许通过与模型的比较来表征QGP。在这些程序中,高$\textit{p}_\text{T}$粒子生产ALICE测量的结果在铅铅碰撞在$ \sqrt{\text{s}_\text{NN}}\, = 5.02\ \rm{TeV}$,以及在PP在$\sqrt{\text{s}}\,=5.02\ \rm{TeV}$首次提出。给出了Pb-Pb碰撞中的核修正因子($\text{R}_\text{AA}$),并与模型计算结果进行了比较。

英文摘要:

The study of inclusive charged-particle production in heavy-ion collisions provides insights into the density of the medium and the energy-loss mechanisms. The observed suppression of high-$\textit{p}_\text{T}$ yield is generally attributed to energy loss of partons as they propagate through a deconfined state of quarks and gluons - Quark-Gluon Plasma (QGP) - predicted by QCD. Such measurements allow the characterization of the QGP by comparison with models. In these proceedings, results on high-$\textit{p}_\text{T}$ particle production measured by ALICE in Pb-Pb collisions at $ \sqrt{\text{s}_\text{NN}}\, = 5.02\ \rm{TeV}$ as well as well in pp at $\sqrt{\text{s}}\,=5.02\ \rm{TeV}$ are presented for the first time. The nuclear modification factors ($\text{R}_\text{AA}$) in Pb-Pb collisions are presented and compared with model calculations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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