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arXiv 1206.0822hep-ph
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稠密重子介质中J/ $ψ$的抑制

J/$ψ$ suppression in a dense baryonic medium

Partha Pratim Bhaduri, A. K. Chaudhuri, Subhasis Chattopadhyay

摘要:

我们已经研究了现有的最新SPS数据$J/ψ$抑制在Pb+Pb和In+In碰撞在158 A GeV。我们所采用的模型,与$p$ - $p$和$p$ -核碰撞固定的参数,给出了很好的描述NA 50和NA 60数据的中心依赖性的$J/ψ$抑制。然后应用该模型预测了金与金碰撞中$J/ψ$产生的中心性依赖关系。预测对$J/ψ$的抑制更大。此外,还研究了重子富集介质对$J/ψ$产生的可能影响。

英文摘要:

We have examined the available latest SPS data on $J/ψ$ suppression in Pb+Pb and In+In collisions at 158 A GeV. Our employed model, with parameters fixed by $p$-$p$ and $p$-nucleus collisions, gives excellent description of NA50 and NA60 data on centrality dependence of $J/ψ$ suppression. The model is then applied to predict the centrality dependence of $J/ψ$ production in Au+Au collisions at FAIR energy domain. A much larger suppression of $J/ψ$ is predicted. In addition the possible effects of a baryon rich medium on $J/ψ$ production is also investigated.

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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