Dipion transitions from $X(3872)$ to ${\chi }_{cJ}(J=0,1,2)$

Qi Wu, Zhong-Quan Sun, Dian-Yong Chen +2

In this work, we investigate the dipion transition processes $X(3872)\to \pi \pi {\chi }_{cJ}(J=0,1,2)$ within the framework of heavy hadron chiral perturbation theory, treating $X(3872)$ as…