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arXiv 0905.1850nucl-thhep-ph
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魅力在FAIR

Charm at FAIR

L. Tolos, D. Gamermann, R. Molina, E. Oset, A. Ramos

摘要:

在FAIR/GSI的CBM实验预期的密度和温度的实验条件下,在自洽耦合通道方法内研究热和致密物质中的粲介子。由于$Λ_c(2593) N^{-1}$和$Σ_c(2800) N^{-1}$的激发,$D$介子谱函数随密度的增加而变宽,并具有向较低能量延伸的尾部。介质中$\bar D$介子质量随密度增加而增加。我们还讨论了粲标量$D_{s0}(2317)$和D(2400)的重整化性质的后果,以及预测的隐藏粲X(3700)共振在FAIR能量。

英文摘要:

Charmed mesons in hot and dense matter are studied within a self-consistent coupled-channel approach for the experimental conditions of density and temperature expected at the CBM experiment at FAIR/GSI. The $D$ meson spectral function broadens with increasing density with an extended tail towards lower energies due to $Λ_c(2593) N^{-1}$ and $Σ_c(2800) N^{-1}$ excitations. The in-medium $\bar D$ meson mass increases with density. We also discuss the consequences for the renormalized properties in nuclear matter of the charm scalar $D_{s0}(2317)$ and D(2400), and the predicted hidden charm X(3700) resonances at FAIR energies.

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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