论文标题
$ω\至3π$和$ωπ^{0} $转换形式重新审视
$ω\to 3π$ and $ωπ^{0}$ transition form factor revisited
论文作者
论文摘要
鉴于最近的实验结果，我们对$ω\至3π$衰减振幅的分散分析和$ωπ^0 $过渡形式尺寸。在Khuri-Treiman方程的框架内，我们表明，以曾经提取的幅度获得的$ω\至3π$ dalitz-plot参数与BESIII的最新实验确定一致。此外，我们表明，在低能的情况下，从我们确定$ω\至3π$振幅获得的$ωπ^0 $转换形式因子与来自MAMI和NA60实验的数据一致。
In light of recent experimental results, we revisit the dispersive analysis of the $ω\to 3π$ decay amplitude and of the $ωπ^0$ transition form factor. Within the framework of the Khuri-Treiman equations, we show that the $ω\to 3π$ Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the $ωπ^0$ transition form factor obtained from our determination of the $ω\to 3π$ amplitude is consistent with the data from MAMI and NA60 experiments.
