The possibility of X(4014) as a D^*{bar{D}}^* molecular state

Abstract

Within the framework of the local hidden gauge approach, we have studied the near-threshold D^* {bar{D}}^* interaction with quantum numbers I(J^{PC}) = 0(0^{++}), 0(2^{++}), 1(0^{++}), and 1(2^{++}), respectively. The contact term and vector meson exchange term in coupled channels are taken into account in this work. One pole, which is found in the case of the quantum numbers I(J^{PC}) = 0(0^{++}), could be associated to the X(4014) recently observed by the Belle Collaboration. Thus, we suggest that the X(4014) may be an D^* {bar{D}}^* molecular state with I(J^{PC}) = 0(0^{++}), and more precise information about X(4014), such as resonance parameters and decay properties, could be useful to shed light on its structure.