Non-$D\bar{D}$ Decays into Light Meson Pairs of the $D$-Wave Charmonium $\ddot{I}{ˆ}_3(3842)$

Zi-Yue Bai, Bao-Jun Lai, Qin-Song Zou +1

As a $D$-wave partner of $\ddot{I}ˆ(3770)$ identified by the LHCb Collaboration, $\ddot{I}{ˆ}_3(3842)$ lies between the $D\bar{D}$ and $D\overline{D^{\ast }}$ thresholds. Its non-$D\bar{D}$ decay channels ha…