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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1208.4206hep-ph
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重介子的新谱学

New Spectroscopy of Heavy Mesons

Fulvia De Fazio

摘要:

我讨论最近发现的开放魅力介子,无论有没有奇怪。利用重夸克极限,计算了这种介子的强衰变宽度。理论预测和实验测量之间的比较有助于为这些态分配正确的量子数。至于隐魅介子,我考虑X(3872)的情况。对$J/ψγ$和$ψ(2S) γ$辐射衰变的分析表明了与$χ_{c1}(2P)$的一致性。

英文摘要:

I discuss the most recently discovered open charm mesons, both with and without strangeness. By exploiting the heavy quark limit, strong decay widths of such mesons are computed. Comparison between theoretical predictions and experimental measurements are useful to assign the right quantum numbers to such states. As for hidden charm mesons, I consider the case of X(3872). Analysis of its radiative decays to $J/ψγ$ and $ψ(2S) γ$ shows the plausibility of the identification with $χ_{c1}(2P)$.

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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