Dynamical study of the $X$(3915) as a molecular $D^{\ast }\overline{D^{\ast }}$ state in a quark model

Youchang Yang, Jialun Ping

Considering the coupling of color $1\otimes 1$ and $8\otimes 8$ structures, we calculate the energy of the newly observed $X$(3915) as $S-$wave $D^{\ast }\overline{D^{\ast }}$ state in the Bhadur…