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arXiv 1909.11906hep-ph
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$χ_{c1}$衰变为赝标介子和矢量-矢量分子

$χ_{c1}$ decays into a pseudoscalar meson and a vector-vector molecule

Natsumi Ikeno, Jorgivan M. Dias, Wei-Hong Liang, Eulogio Oset

摘要:

我们评估的$χ_{c1}$衰减率$η$($η', K^-$)和$f_0(1370)$,$f_0(1710)$,$f_2(1270)$,$f_2'(1525)$,$K^{*}_2(1430)$共振,这在本地隐藏规范方法动态生成的矢量矢量相互作用的比率。简单地假设$χ_{c1}$是SU(3)的单重态,并将这些共振研究的输入作为矢量-矢量分子态,我们描述了实验比率$\mathcal{B}(χ_{c1} \rightarrow ηf_2(1270))/ \mathcal{B}(χ_{c1} \rightarrow η' f_2'(1525))$,并预测了6个可以在未来实验中测试的比率。

英文摘要:

We evaluate ratios of the $χ_{c1}$ decay rates to $η$ ($η', K^-$) and one of the $f_0(1370)$, $f_0(1710)$, $f_2(1270)$, $f_2'(1525)$, $K^{*}_2(1430)$ resonances, which in the local hidden gauge approach are dynamically generated from the vector-vector interaction. With the simple assumption that the $χ_{c1}$ is a singlet of SU(3), and the input from the study of these resonances as vector-vector molecular states, we describe the experimental ratio $\mathcal{B}(χ_{c1} \rightarrow ηf_2(1270))/ \mathcal{B}(χ_{c1} \rightarrow η' f_2'(1525))$ and make predictions for six more ratios that can be tested in future experiments.

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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