Vector and axial-vector charmoniumlike states

After constructing all the tetraquark interpolating currents with JPC=1-+, 1--, 1++ and 1+- in a systematic way, we investigate the two-point correlation functions to extract the masses of the charmoniumlike states with QCD sum rule. For the 1-- qcqc charmoniumlike state, mX=4.6∼4.7 GeV, which implies a possible tetraquark interpretation for the state Y(4660). The masses for both the 1++ qcqc and scsc charmoniumlike states are around 4.0∼4.2 GeV, which are slightly above the mass of X(3872). For the 1-+ and 1+- qcqc charmoniumlike states, the extracted masses are around 4.5∼4.7 GeV and 4.0∼4.2 GeV, respectively. As a by-product, the bottomoniumlike states are also studied. We also discuss the possible decay modes and experimental search of the charmoniumlike states.