论文标题
Tetraquark混合，由两个浅膜非元素的部分衰减宽度支撑
Tetraquark mixing supported by the partial decay widths of two light-meson nonets
论文作者
论文摘要
最近，已经提出了tetraquark混合框架作为$ j^p = 0^+$通道中两个轻膜非网络的可能结构$ k_0^*（1430）$，$ f_0（1370）$，$ f_0（1500）$。在各种特征中，我们在这项工作中报告说，它们从粒子数据组（PDG）中各种实验数据收集的部分衰减宽度也可以支持此混合方案。特别是，我们证明，从部分宽度估计的光nonet与两个伪尺寸的介子的耦合始终比沉重的noneT强。这种一致的特征在定性上与四夸克混合框架的预测相吻合，因此为Tetraquark混合提供了支持的证据。
Recently, the tetraquark mixing framework has been proposed as a possible structure for the two light-meson nonets in the $J^P=0^+$ channel, the light nonet composed of $a_0(980)$, $K_0^*(700)$, $f_0(500)$, $f_0(980)$, and the heavy nonet of $a_0(1450)$, $K_0^*(1430)$, $f_0(1370)$, $f_0(1500)$. Among various signatures, we report in this work that their partial decay widths collected from various experimental data in Particle Data Group (PDG) can support this mixing scheme also. In particular, we demonstrate that the couplings of the light nonet to two pseudoscalar mesons estimated from the partial widths are consistently stronger than those of the heavy nonet. This consistent feature agrees qualitatively well with the predictions from the tetraquark mixing framework and, therefore, provides supporting evidence for the tetraquark mixing.
