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arXiv 2005.00763hep-ph
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矢量介子$ω(782)$和$ϕ(1020)$的混合角

On the mixing angle of the vector mesons $ω(782)$ and $ϕ(1020)$

M. K. Volkov, A. A. Pivovarov, K. Nurlan

摘要:

本文在Nambu-Jona-Lasinio模型的框架下估计了矢量$ω(782)$和$ϕ(1020)$介子的混合角。衰减$ϕ\to π^{0} γ$被认为是确定这个角度的基本过程。所得值与其他作者的结果进行了比较。此外,还利用这个角度计算了$ϕ\to 3π$衰变的宽度和$e^{+}e^{-} \to π^{0} ϕ$衰变过程的截面。

英文摘要:

In the present work, the mixing angle of the vector $ω(782)$ and $ϕ(1020)$ mesons is estimated in the framework of Nambu--Jona-Lasinio model. The decay $ϕ\to π^{0} γ$ is considered as a basic process to determine this angle. The obtained value is compared with the results of the other authors. Besides, the width of the decay $ϕ\to 3π$ and the cross-section of the process $e^{+}e^{-} \to π^{0} ϕ$ are calculated by using this angle.

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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