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arXiv 0912.4359hep-ph
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Y(3940),Z(3930),X(4160)共振的辐射开粲衰变

Radiative open charm decay of the Y(3940), Z(3930), X(4160) resonances

Wei Hong Liang, R. Molina, E. Oset

摘要:

我们确定了X,Y,Z共振类粲偶素态以及由矢量介子与粲相互作用动态产生的其它隐粲态衰变为$D^*$和$\bar{D} γ$,或$D^*_s$和$\bar{D}_s γ$的辐射衰变振幅。作为$\bar{D} γ$或$\bar{D}_s γ$不变质量的函数的质量分布显示出作为这些状态的$D^* \bar{D}^*$性质的结果的特殊行为。对这些量的实验研究可以揭示这些状态的性质。

英文摘要:

We determine the radiative decay amplitudes for decay into $D^*$ and $\bar{D} γ$, or $D^*_s$ and $\bar{D}_s γ$ of some of the charmonium like states classified as X,Y,Z resonances, plus some other hidden charm states which are dynamically generated from the interaction of vector mesons with charm. The mass distributions as a function of the $\bar{D} γ$ or $\bar{D}_s γ$ invariant mass show a peculiar behavior as a consequence of the $D^* \bar{D}^*$ nature of these states. The experimental search of these magnitudes can shed light on the nature of these states.

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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