A consideration on the search for hybrid$c\bar cg$ mesonsmesons

Summary

In this paper we have reported some arguments on the search for charmonium hybrid meson$c\bar cg$. Referring to our previous work on light-quark mesons, we have discussed the possible existence of hybrid$c\bar cg$ mesons and studied the decay properties of their ground state into the OZI-allowed channels and the OZI-forbidden$c\bar c$-triggered channels. We have also discussed their radiative-decay properties and pointed out the possibility of the mixing effect between theP-wave$c\bar c$ mesonsχ _c and the ground-state hybrid$c\bar c$ mesonsχ _cg.