X(5568) and its partner states

Stimulated by the recent observation of the X(5568), we study the X(5568) and its partners under the tetraquark scenario. In the framework of the color-magnetic interaction, we estimate the masses of the partner states of the X(5568) and discuss their decay pattern, which provides valuable information on the future experimental search of these states.National Natural Science Foundation of China [11275115, 11222547, 11175073, 11261130311]; 973 program; National Youth Top-notch Talent Support Program (Thousands-of-Talents Scheme); SRF for ROCS, SEMSCI(E)ARTICLEyrliu@sdu.edu.cn; xiangliu@lzu.edu.cn; zhusl@pku.edu.cn79