Role of $a_0(980)$ in the decays $D^0\to K^{+}{K}^{-}\eta$ and ${\pi }^{+}{\pi }^{-}\eta$

Sara Rahmani, Wei Liang, Yu-Wen Peng +3

In present work, we study the reactions $D^0\to K^{+}{K}^{-}\eta$ and $D^0\to {\pi }^{+}{\pi }^{-}\eta$, and find that the $a_0(980)$ state plays a dominant role. At the quar…