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arXiv 0806.3711nucl-th
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核介质中的粲和隐粲标量介子

Charm and hidden charm scalar mesons in the nuclear medium

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

摘要:

本文研究了核介质中低位粲标量介子和隐粲标量介子的重整化性质,具体研究了D_{s0}(2317)和理论隐粲态X(3700)。我们发现,对于D_{s0}(2317),在零密度下的宽度可以忽略不计,在正常核物质密度下的宽度变为约100 MeV,而在X(3700)的情况下,宽度变得高达200 MeV。我们讨论了这种新宽度的起源,并将其追溯到原子核中发生的反应,同时为未来测试这些变化的实验提供了指导。我们还展示了这些介质的修改将带来有价值的信息的性质的标量共振和机制的相互作用的D介子与核子和原子核。

英文摘要:

We study the renormalization of the properties of low lying charm and hidden charm scalar mesons in a nuclear medium, concretely of the D_{s0}(2317) and the theoretical hidden charm state X(3700). We find that for the D_{s0}(2317), with negligible width at zero density, the width becomes about 100 MeV at normal nuclear matter density, while in the case of the X(3700) the width becomes as large as 200 MeV. We discuss the origin of this new width and trace it to reactions occurring in the nucleus, while offering a guideline for future experiments testing these changes. We also show how those medium modifications will bring valuable information on the nature of the scalar resonances and the mechanisms of the interaction of D mesons with nucleons and nuclei.

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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